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6u1d0 said..azymuth said..Maybe reducing pressure on the mast base and redirecting through your feet (more like winging) is the way to go - it might just require getting used to it. Have my doubts but open-minded

He does explain it out right : aft is more responsive.
Having your set up balanced for forward mast base increases longitudinal stability, but gives the sail more leverage in case of gust. It is good if you use a race typed sail.
Having your set up balanced for aft mast base reduces the sail leverage, thus instability caused by the gust. But it is way more reactive to riders weight shift input. If you use a freestyle sail, that's what you are looking for. But no autopilot, long reach are going to be quite tiring.
90% of my foil time is now on IQ kit but I do notice that it is quite sensitive to mast base position, and my previous habits from freeride foiling (sheeting out/in constantly) made a forward mast base on it maddeningly sensitive to sail sheeting. I ride slingshot gear way further back and quite a bit differently.
I cannot currently explain it, but at some point, I think it was when I got longer harness lines for foiling, something clicked in my head. I understand the difference between sail and bodyweight/position trim intuitively now. At some point I'll be able to explain it maybe, but yeah at least for me, I started to feel the difference between sail being overpowered and the foil being too lifty, as it often happened at the same time because my movements, setup, or body position made it that way.
Point is, now I trim the sail a lot less in flight, or maybe I'm smoother, and try to hike out more to counteract gusts and steer the board more. Not riding it scared and sheeting out as much.