I like retro fishes to be as close to the real deal as possible, so I go with down rails for the most part…fading into 50/50 in the nose. So the rail apex, as you go from nose to tail, starts out in the middle, then gradually rolls down to a 70/30 after about the first 16 inches. I hold that rail all the way through, and start giving it a hard, slightly tucked under edge about 7 or 8 inches ahead of the leading edge of the fins.