Hopefully this goes somewhere. When vortex generators were introduced as STC'd kits on some aircraft, a lot of off the record experimentation was done.
Much of it was.."well, if a row works well here then what'll happen if I put a couple further back" type stuff. They got stuck here there and everywhere.
Yes Virginia, there is a Santa Claus, and Yes there are still out of the way places on this planet where the curious try out all kinds of things without the proper approvals and inspections just to satisfy their curiosity. Even tried out on prop blade tips to see if they'd change the loud bark that is produced when the tip goes supersonic. The experimentation stopped or went completely off radar quite suddenly and I haven't heard a peep in a long time.
Hmmm. Lumps and bumps on a laminar flow wing.... Could be interesting.
Nature does have a way of being subtle and only letting the observant hear her say: Been there, done that.