Question for the physicists and hydronauts
From what I’ve seen the single to double concave seems to be the most widely used bottom in shortboards and even most Grovelers .
it is my understanding that the single up front creates instant lift/speed while the double maintains that lift while adding an element of control to turn once surfing with some velocity, eliminating the “stickiness” of a single.
however I was thinking, can’t all the functionality of the double concave be achieved with a flat bottom after a single concave? You eliminate the inherent “stickiness” from concaves that you compensate for when shaping in a double. Also, you’d maintain some speed from a front single concave through the elimination of drag created by the middle spine/vee in a double concave.
could somebody smarter than I please school me as to why the the single to double is so conventional?