Hoping I can get some advice on shaping a 9'2" longboard out of a stock U.S. Blanks 9'4"B . Planshape will be 18" nose 22 3/4" center 15 1/2" pintail widepoint center 50/50 rails............................Singlefin of course. I need help on the tail rails and bottom. It's not going to be noserider but an replacement for my shortboards and midlengths since my shoulder injury doesn't allow me to surf them anymore.Good paddleing and smooth cutbacks is all I want. I know I want downrails and Vee in the tail but I'm not sure where and how much? From what I've gathered 1/8" of Vee starting at 22" up from tail is normal? should it go to flat behind the fin? How far up should the downrail go from the tail? This is my 4th board but I can't find much info on longboard shaping. Does anyone have that Jim Phillips shaping video I could borrow/buy? Is it still available?