another placement consideration
I see that some installers, I belive it's the savannah guys, who kind of knock-off the Heintz CH-750, but without Leading edge slats, they put the VG's at one point on the wing, but move them to a more forward position in front of the ailerons. thus, the wing root will be forced to stall first, and the potential is that the VG's nearer the tip are still keeping the flow attached over the aileron into the stall. of course, we'd NEVEr move the ailerons in the stall, right? ..... but could it be a bacon saver in the incipient stage if you feel the burble of the root stall, while you are manipulating the ailerons in a turn?