Hey larry/robin/probox users, i am shaping a fish, and im thinking of placing my proboxes in such a way that i can use the rear box as both keel fin boxes, and the rears for a quad setup. So far, i've found that i can set the back boxes so that the keels are all the way back in the box, set at 7'' from the tail, and with the quad rears all the way forward, the rear edge is 8" from the tail, and i've set the rear of the front fin at 13" from the tail, which gives me around an inch between the two fins ( im going for a rail oriented quad. Im thinking of 1/4 toe front boxes, 1/8 rear boxes, and probably 6deg front, and 4deg rear.
What do you think??
P.S i always seem to stand further forward on my boards than i probably should, so i figure 8" and 13" will be forward, but not too forward.
P.P.S fish is 6'1'' x 15 1/2n x 21 1/2 + 2'' x 16 3/4t, around 4 1/2 in the nose, and 2" in the tail. Knee to head high beachies.