There is a lot of discussions on this and other boards, as well as questions about towers cracking gelcoat (or at least ways to prevent it from happening).
I have asked around and so far can not find anyone who has seen or experienced damage to gelcoat from a wakeboard tower? (OK, I did hear of a person that had two future Darwin award winners on their tower while jumping waves in the ocean and it created some stress cracks in the gelcoat).
If you have - what kind of boat and tower was it?
Thanks,
Bill@MonsterTower.com