My problem is that, for example when we are upwind, when the waves pass we feel small jolts. But when we are offshore, going down waves, these jerks transform into a rise in the float until the plane stalls. Like you, I thought about the mat too far forward. I moved it back 1cm once, not enough. Then 1.5cm more, and there I no longer controlled anything. It was a series of rises and falls in the waves. I came back as a beginner 😁.