I have the 103,and I recently got a 33cm select Bump and Jump fin, for my 6.5 gator, for that very same reason i.e. to get the most out of the board when its marginal. Thats the biggest I found in US box.
It seems to do the job, i have yet to try in in that configuration when fully powered up, but I had no problem handling the lift with the center strap.
Last edited by racerX; 20th April 2010 at 04:22 PM.