I wasn't sure if I'd like my BT coming from the Rex, but I wouldn't go back to a low BB frame now I'm used to the BT, it's definately the best trials frame I've ever owned (non biased opinion). Going onto back wheel is effortless.
My RAVen 6.0 has got a 50mm BB rise, and it's perfect for me. It took some gettin used to thats for sure, coming from a frame with no BB rise at all! Since I got the frame, my riding has improved loads. Sidehops are better, taps are much easier, also my gaps haven't gone downhill. This was one thing I was worried about before I got the frame. I read a post by TRA about his Vinco, and he mentioned not being able to gap the bike to back wheel as good. I can gap the BT just as far as I could on the Rex :lol: So I haven't got any worse, probably just remained the same at them. Anything involving going to front wheel first, higher BB frames help imo.
At the end of the day, it's like marmite. You either hate it or love it. I love higher BB frames thats for sure. If I was you Chris, give it a try.
Rossi.