I got one based on how Margo was sizing but a little shorter he is 6'1 riding 6'8, and I am 6'4 on 6'9, Matt recommended 7'2, I don't need another mid, and feel I sized well for what I wanted it for, more paddle power in a shorter package. After riding it I think you could go way shorter tho as well, notice margo on 6'4 s now.
Yeah, I have a 6'3 x 20.5 x 2.68 XTR (200lbs when on a 5/4) and this is the post I left in the XTR thread when someone asked me about it
In my mind I was acquiring a longer rail fish, I dim'd it a bit longer and narrower that you'd do for a fish and that it would go well in 1'-4' east coast junk. It paddles very well, it can catch almost anything, there is a lot of foam but it needs some juice to get started, it has a bit more rocker than your typical fish. I took it to Portugal and finally dialed it in on some bigger surf... It has heaps of drive and you need to work on generating speed a bit more that I am used to in a quad fish. It releases off the top in a way that I had never experienced, feels like you are ice skating, but not in an uncontrolled way, it releases easily but you can put weight on the front foot to go down and it goes straight to the train tracks again. There is a certain playfulness on being super loose off the top/super drivey when engaged... It's interesting, maybe its the channel? I don't know...
Also fins were something that I had to work on, I tried a bunch of setups and the ones that worked well were futures bamboo controllers for weaker surf and NVS JL large quads for better surf (I think Margo uses this setup). I brought some Bom Dia quads and they felt really stiff.
tldr;
It's more performancy that the marketing memo claims
It's a fun design that gives you confidence (drivey and paddle capabilities)
I wanted to surf like Margo but still far from it
Now it's my go-to on good not top quality waves (3-5).