These should be on every STOL aircraft.  They’re cheap, easy to install and they work – please just get them or you are short-changing yourself on the best value performance improvement option out there.  VG’s give a great improvement in control and low-end safety with no downside at all.

Vortex Generators (VG’s) work by inducing mini-tornados (vortex’s of swirling air) in their wake.  These vortexes help to keep the airflow effective over the elevator at much lower speeds.

They do this using magic and stuff.