What up Frosty? Ballisticks:is the science of mechanics that deals with the flight,behavior,and effects of projectlies,especially bullets. Hope this helps. peace
Ohhh, you mean Ballistics! When you typed Bollisticks, and then Ballisticks, I have to admit, I was a bit confused. I'm glad you didn't have to try for a third time! Now I get it. Phew. I thought you were picking on me. My bad.
Yes... research has shown that the surface texture left by 400 grit sandpaper makes the most efficient surface in terms of boundary layer thickness and reduced friction drag. But the sanding strokes have to be nose-to-tail, which form grooves similar to the "riblets" found on the bottom of some racing sailboats and aircraft. As board builders, this is all we can do without going high-tech. Keep in mind that most water does not flow nose-to-tail perfectly parallel to the stringer. It flows at some angle across the bottom, which would be at an angle across the abrasions.
Yeah, I agree the tricky part would be getting the bottom contours correct, V-shape, double, single, ect.... The grooves would need to compliment the shape, otherwise it going against the grain. Also, it should be noted that these grooves will be gone after roughly 50 hours of surfing due to salt/sand abrasion. I have never surfed a board with grooves sanded in the hotcoat, therefore I cannot speak on it's noticeable performance. But, now I am curious.