Mast/foil position

I’m in the process of assembling the mast, there are two possible configurations of the mast position. There is 15cm between the two options. See pictures. Which one is bether? If the wing is more in front, the rear does not stick out that far over the end of the board, but the uplift might be to far in the front.
In the last pictute the board and the possible mast position.


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Normally, the mast further back makes a more playful foil (easy to turn). Conversely, a mast further forward is more stable in trajectory and (a bit) more difficult to turn. You don’t take any chance if you mount it forward. When you gain confidence you might appreciate the middle position. The best thing is to try and adjust it to your likings.

Hey, which foil is this? Haven’t seen it before!

It’s a Chinese one: Chinese hydrofoil for efoil?
Nr 3 Windsurfing Hydrofoil. I haven’t tested it but it is rather heavy with its 5kg (and heavy duty as well). I bought it in April 18, I think there are better options now like this one from RLKite. Carbon wings optimized profile for e-foils now available

It’s a Chinese non branded slingshot gamma 68 wing. The gellcoat will most likely chip off in time but they can handle some abuse! It’s actually a pretty decent all round foil wing.

good to know, I hope I can try it next spring/summer