Straight dope on finishes and drag?

[Tim Hall]

I've been looking around for info on how hull finishes (paint, gel coat, exotics, etc.) effect drag. There seems to be a lot of debate, and no straight answers...and a lot of folks who swear by whatever it is they use.

Some say as slick and glossy as possible is best. Others say a little tooth or satin finish actually enhances laminar flow. Some talk about whether the material is hygroscopic or hydrophobic...

So my first question is: Would any of this make a noticeable difference in a light paddle craft (canoe/kayak)?

If so, anybody have any thoughts on what really happens between the water and a hull finish?

[gonzo]

All the studies show that anything past 320 grit is only good for looks. The reason race boats are shiny is that sponsors would not pay for a flat gray boat.