Comment This has been applied in cycling.. (Score 2) 104
In the cycling world, much attention is paid to aerodynamics.
My Ridley Noah from around 2011 has strips of a rough tape (about 3mm across) in spots that sounds like what the OP is covering. There are also slits in the forks and seat stays that apparently have a beneficial effect on airflow, besides the more commonplace aerodynamic tube shapes. (Kammtail the standard now over more traditional aero shapes.)
They stopped using the tape after a few years, but have seen it pop up with other brands. I think the latest iteration has a very narrow indented 'line' instead. But things like dimpled wheels, and even 'whale fin' wheel designs make some interesting aerodynamic claims.