Shuras Hi Alex, new boards will deal well with chop yes, rocker is a bit lower than the Falcons/cutouts are smaller so they ride a bit flatter and more control.
it's always hard to give a 100% recommendation on the sail sizes, as rider styles and conditions are so different. But roughly:
94 - probably ideal size is around 6.0 and then 1sqm on either side.
110 - ideal size 7.0, 1sqm on either side of that. So in theory 94 best for you if 6.0 is your most used sail. But typically I would think the 110/7.3 might be the most used setup or?
For 25+ knots on the 94, the standard fin should be fine. For the 110 in 25+, probably a 36cm size?