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Twinzer Feedback?

Duffy LaCoronilla

Duffy LaCoronilla

Duke status
Apr 27, 2016
42,618
34,787
113
ghostshaper said:
Probably aeration, being so close to the surface.
Click to expand...
Yes. I do believe that in very big surf (tow surfing) actual cavitation occurs. It's been described as going down the line basically straight and the board just suddenly stalls. Not slide, stall. That sounds like cavitation.

What is labeled cavitation typically is just fins releasing during a turn and air is introduced.

I can see how a twinzer can minimize that. More overall fin area and the effect of applying pressure to the outside foil of the main fin (acting sort of like a reenforcement (think leaning on a fence)). Not to mention "smoothing out" the flow over the foil.

PS: I'm not a shaper and couldn't shape a good board by hand if my life depended on it.
 
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G

ghostshaper

Phil Edwards status
Jan 22, 2005
6,440
3,307
113
1134
Duffy LaCoronilla said:
Yes. I do believe that in very big surf (tow surfing) actual cavitation occurs. It's been described as going down the line basically straight and the board just suddenly stalls. Not slide, stall. That sounds like cavitation.

What is labeled cavitation typically is just fins releasing during a turn and air is introduced.

I can see how a twinzer can minimize that. More overall fin area and the effect of applying pressure to the outside foil of the main fin (acting sort of like a reenforcement (think leaning on a fence)). Not to mention "smoothing out" the flow over the foil.

PS: I'm not a shaper and couldn't shape a good board by hand if my life depended on it.
Click to expand...
This was a problem when foilers had a tip of their foil break the surface during a turn. I remember reading about or (seeing in a video) a trail of air running down the foil (bc the foil is vertical).
 
sh3

sh3

Michael Peterson status
Dec 1, 2008
2,972
4,347
113
www.instagram.com

The Boardroom on Instagram: "Good Will (Jobson) Hunting w Matt Biolos. Latest podcast is available now on @surfsplendor Or Boardroom Surf show YouTube channel Or Apple Podcasts or wherever you get your podcast fix. #surfpodcast #surfing #surftalk #boardroompodcast"

122 likes, 6 comments - boardroomshow on July 16, 2024: "Good Will (Jobson) Hunting w Matt Biolos. Latest podcast is available now on @surfsplendor Or Boardroom Surf show YouTube channel Or Apple Podcasts or wherever you get your podcast fix. #surfpodcast #surfing #surftalk #boardroompodcast".
www.instagram.com www.instagram.com

Sort of wonder if this was already posted. I have zero desire to read the 60 prior pages of this thread.
 
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Swiftvelo

Swiftvelo

Sep 20, 2019
113
160
43
I’ve got a Jobson. . Yes the board is amazing and does what you think it does.
Mains at 8.75 4 degrees of cant, Canards 9 degrees of cant. Even with the leading edge of mains.

I also have a daily driver. This is my experimental board. I have three sets of fins for it along with canards. Each set of fins gives the board a completely different feel. This has really allowed me to figure out what works for different waves. Depending on the waves I can increase the overlap on the mains in smaller surf to loosen up the board. It’s been the best way to figure out what works for me. Being on east coast , not a lot of sources to talk with.
With the help of a few here, I’ve been able to move the bar much faster. I’m forever grateful for them. Currently in the process of making my own boards to further dig deeper into the rabbit hole, eventually I’ll be deep enough to be in the company of the Twinzer gurus.
I had a board shape from a Santa Cruz shaper that had the Joey Thomas placement, needed waves with lots of power to work. Just didn’t get the waves that it needed to make it a magic board. I’m sure OB would have been amazing on it.
 
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Swiftvelo

Swiftvelo

Sep 20, 2019
113
160
43
sh3 said:
www.instagram.com

The Boardroom on Instagram: "Good Will (Jobson) Hunting w Matt Biolos. Latest podcast is available now on @surfsplendor Or Boardroom Surf show YouTube channel Or Apple Podcasts or wherever you get your podcast fix. #surfpodcast #surfing #surftalk #boardroompodcast"

122 likes, 6 comments - boardroomshow on July 16, 2024: "Good Will (Jobson) Hunting w Matt Biolos. Latest podcast is available now on @surfsplendor Or Boardroom Surf show YouTube channel Or Apple Podcasts or wherever you get your podcast fix. #surfpodcast #surfing #surftalk #boardroompodcast".
www.instagram.com www.instagram.com

Sort of wonder if this was already posted. I have zero desire to read the 60 prior pages of this thread.
Click to expand...
It has.
 
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B

Bluehorn

Oct 12, 2023
96
49
18
Corpus Christi
Has anyone ever tried a bigger hybrid upright/keel fin like the BMT and others with a canard. I was wondering if you could pair something like the BMT with a canard, but in a further up position like 10 inches. I was thinking it could give you the drive of a keel, but still be loose and maneuverable.
 
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TheEl

TheEl

Billy Hamilton status
Oct 31, 2010
1,503
1,567
113
my dixie wrecked. I need to pull the trigger on one of his boards.
 
J

JKordel

Oct 30, 2017
14
44
13
jkb said:
How long was the wait?
Click to expand...
I don't remember exactly. I think I put my name on the list last July. At that time the expected wait was about 18-24 months. Dane reached out to me in May to start the process. I received the board mid Sept. So, a year and a few months. He's gotten really popular so I knew what to expect.
 
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J

JKordel

Oct 30, 2017
14
44
13
Bluehorn said:
That looks like a really fun board. How much foam were you able to pack into that step deck?
Click to expand...
It's a hand shape, so volume is a bit of a guess. It's 2 1/2 thick w/ the flat deck. The foil carries more foam under the chest and up front and the tail is pretty foiled. In the water it felt like the volume's around 35 liters. I'm approaching 60 and figured a little extra volume would be welcomed. So far I'm really happy w/ the board. Just one surf so far but it did not feel corky at all.
 
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One-Off

One-Off

Duke status
Jul 28, 2005
15,125
11,570
113
33.8N - 118.4W
JKordel said:
View attachment 190630View attachment 190631View attachment 190632

Stoked!!!

Just had this beauty hand delivered to the PNW this weekend!

6'1" x 20 1/8, mains @ 8 3/4", chine similar to need4speed on pg 55.

Just one short 30 minute surf so far, but I can tell this is a special one.
Click to expand...
I'm curious about the rail bevel on the deck. I've always thought it was a good idea, that it would shed water, like the hard edges on the bottom. Like Griffin used to say. "Release, release, release." Instead most of the shapers who do them mention only a way of distributing volume (keeping it out of the rail).
 
Last edited:
need 4 speed

need 4 speed

Phil Edwards status
Nov 1, 2003
6,866
3,908
113
SoCal
For purely aesthetic reasons, I prefer a more traditional rail shape. What I’ve learned through my own trail and error that dome decks work best for me with a “pinched” rail
 
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Duffy LaCoronilla

Duffy LaCoronilla

Duke status
Apr 27, 2016
42,618
34,787
113
One-Off said:
I'm curious about the rail bevel on the deck. I've always thought it was a good idea, that it would shed water, like the hard edges on the bottom. Like Griffin used to say. "Release, release, release." Instead most of the shapers who do them mention only a way of distributing volume (keeping it out of the rail).
Click to expand...
That along with a flat deck allows you to apply more force to the rail. More leverage.
 
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