ChazInMT -
Thanks. I hadn't seen that one. I thought you were referring to the 2004 Evo paper on vortex generators :
Research on Aerodynamic Drag Reduction by Vortex Generators
Both papers have Naoki Hamamoto in their author list. Maybe he's their main aero-dude. Gotta find an Evo to stare at.
CarloSW2