Heading for the coast and would like an explanation of symptoms of bad trim, what to look for and how to shim the rear wing, My boards only have a front foot hook for control while starting so basically riding strapless. Starting with the rear wing at aprox 2 degrees negative AOA, front is zero to the mast and mounting surface of the board.
So, whats it going to feel like with too much negative or not enough? how to tell if its foot position or trim etc. ? which do you adjust first? How to tell if the board to front wing angle is correct?
There is, IMO, not one correct angle, as it can be individual what one prefer, and how the board is used.
If you got too much negative, the board will "pop out" of the water too easy, almost no matter what you do and how much weight you have on your front foot, if the hook is too far rear.
In this case, you could move the hook forward, as then the hydrofoil will be quite stable and in trim.
When you learn to ride faster, you might prefer a lower or positive angle on the rear wing.
For the first attempts, where I asume you only got a limited amount of inserts, I would just put the hook far forward, and go out and try
If it still pops out by itself, you just shim the rear wing up a bit, till it feels right.
So front hook far forward (you can always stand in a wide stance if the rear wing has too much aoa)
And then trim aoa up (or less negative) if it tries to "fly" too easy, even with a normal not wide stance.