Zane, theres a thread on blueprinting the pump in the Tech FAQ section, it will tell you everything you need to know, very simple... I can see it being a benefit for FW BFs for hookup in your setup wake...
I watched lee stones BF quite a few times, it looks like he uses his trim system in this fashion... pull it a little before you get to your launch wake and then let it down as your approaching the face so the front of the ski goes down and then give it a good pull as you launch, it seems like it would help with rotation... watch the video and you'll see what im talking about because i dont think i articulated it that well... i have yet to try a FW BF because my ski is in pieces and all I had last year was an sxi pro /w a race motor....
Ill be trying the FW BF until the lake freezes over this year... i think power plays a bigger part in this trick than in any other trick, skill being the most important however...