Had my new 6.7 hellcat out in 20-25 knots last tuesday. Same set up except for x3 boom. JP FSW 101 Pro Ed '08 + JP 35cm supersport fin. After a few stops and friggin with the riggin. Had the thing dialled.
Absolutely wrapped with this sail. Felt very balanced & fast

Easy to waterstart too.
Next time will try moving my footstraps outboard aswell.
Hope you get some good wind soon to try it out properly. I've only sailed mine a few times now and I'm stoked with it.