Ok this ones for the more astute minds in relation to tail design. A friend has a 9'1" longboard. Its a performance board with plenty of rocker, with twin concaves in the rear and a rounded pin tail. Well it had a rounded pin tail. The board has been dropped rather hard on the tail and has mashed a good inch and a half of the length.
My question is what effect will making it into a square tail have on it? I assume it may not turn as well, but is there anything else. Will it effect the way it rides across the face of a wave. Would a different fin set up counter-act the square tail( it has an 8" dorsal and the sidebites out for low drag in smaller waves)?
So is it worth fixing? I myself am not to bad at fibre glassing and could do the job for him. Or will the board be rubbish and tell him time to buy a new one?