As Dean says, invigorating the boundary layer isn't new, the C/L guys have been doing it for a while and the free flight guys forever with many different designs of turbulators and trips. A couple of years ago I tried zigzag turbulator tape on my Asyuler again to try and get the elusive "locked" sit in the air. I think it did make a slight difference but these things tend to be subjective, the only thing I know for sure was that the throws had to be turned up to keep a decent snap.
As Jim's article on full size highlighted the difficulty with all these devices is the correct placement without either a lot of trial and error experimentation or wind tunnel work. Have the C/L guys come up with some rules for the design and placement of these devices?
Malcolm