[QUOTE=Major Puffer;168373]Zipp has done extensive wind tunnel research over the years. The fastest bicycle wheels on the planet are dimpled, does this advantage transfer to cars highway speeds? I was told years ago that a tennis ball will go faster with the fuzz on it than without it, seems like you want a "fuzzy" (or dimpled) surface for optimum drag reduction at speeds most of us encounter on the road.
[ /QUOTE] How about i take a tennis ball , flow test it on my cylinder head flow bench,then give it a shave and flow it again .Should give us an indication as to what is going on.