Hi Frank, what do you weigh/your local conditions. I ride the Free 1000 and 1250 a lot (76kg), lots of days with 6.0 at our Bavarian Lakes - so the 1250 is my go to light wind foil, has loads of power. Not much bigger than your 1150 Carve though? but the 1400 Carve is also fairly slow/big - but for sure more manoeuvre friendly/faster than the 1750 Aero HA.