Ganue,
Might want to check your tow ball weight that the trailer is pushing down.... looks like it might be a bit heavy... I had to move my boat back on the trailer 100mm and the axle forward 80mm to acheive a 75kg towball down force.... before doing that mine had 150+kg downforce!! (the Tiggy's are rated for 100kg down force).... the boat yards don't really care too much about the correct balance or COG (centre of gravity) when they sell us our new toys.
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