I was just addressing the fact that when U say increasing vee and I say decreasing it's actually the same as the absolute change at rail depends on board width becoming narrower
Just as I thought the thread may not be confusing enough
Looks like more than one definition exists. This is what it says on surf research
spiral vee 1. a vee in the bottom with concave panels between the rail and the apex of the vee. 2. (?) a vee in the bottom tail section that has its apex under the back foot, generally in front of the fin/fins. Attributed to Terry Fitzgerald, circa 1974
