You like Black Dart better then Carbon Wrap? Didn't care for my Lightspeed. Thought I read somewhere Blak Dart not great for bigger guys? I sold my carbon wrap Rad Ripper and regret it. That thing was the best groveler I've had.
Been wanting to try a RR in that build from Drew.
I have a Black Dart Bean Bag (also have a lightspeed) and a Carbon Wrap Baby Buggy. I am definitely on the Get In My Belly end of the size spectrum.
The Black Dart I would pick specifically for the Bean Bag, because it's a very short/thick/wide shape and that board is magic in textured logmush and so the slight flex feels good in small/weak surf, and maybe dampens little bumps a bit. Something like a Puddle Jumper for small waves would be another great choice. Maybe Hydra, similar. C3 could be good too, but I had an RV I didn't click with as the extent of my experience in that.
The Lightspeed Bean Bag is the next size up, an inch longer. It feels about as floppy new as the Black Dart did used - no idea how careful the Black Dart's previous owner was. I can say I left the Black Dart in a fairly warm-hot, but not completely baking, car one day for an hour or two and I don't think that helped it any.
The Baby Buggy or similar for a larger surfer I'd rather have Carbon Wrap. I could see Black Dart maaaybe feeling too floppy - I have seen some lightspeed shortboards in my dims and been a little leery of that build feeling floppy. The Carbon wrap has been to Mainland Mexico twice, eg at the mercy of baggage handlers, taxi roofs, and the bus's luggage compartment in terms of heat, and does not feel floppy at all.
Maybe Drew can do a bit stiffer layup or blank? Maybe Black Dart feels stiffer new and never cooked? I'd order a Black Dart in light colors no doubt.