Just read all the stuff on light wing loading stalling easily- (?)

All of the models we are now flying/testing etc., have extremely low loadings and the wing planforms go all over the place from tapered to rectangular
BUT all are very small (30" span) flat foam models
the rectangular wings are 3.3-1 aspect ratio
the tapered are typically 10"- 12" root and 5"-6" tips
We fly the crap out of these at high /low speed and the one thing noted is that the rectangular 3.3 planform -when dived at full bore -the snapped instantly to level -and power cut - will simply settle evenly - no tendency to snap out.
But at high AOA flight , holding power -it gets a bit wishy washy from side to side .
The models all will rudder turn (180 or 360)in just a few span lengths - at any speed and there is no "tip stall"
The tendency to get wishy washy in high AOA has been cured -every time --by simply adding MORE elevator area - not changing cg -just adding more elevator area.
My observation is that this has increased TRIM DRAG -resulting in better yaw control -If that makes sense. The elevators may be at 45 degrees deflection in holding these very high AOA attitudes-whilst maintaining altitude
We change the tail group area by simply instant glueing on more piecesof flat foam-OR slicing away some of it
results are sometimes surprising .
the ability to change all this and re fly/test in a matter of minutes -really has helped me eliminate a lot of ideas -which simply were not applicable.
You guys who have not taken advantage of the cheap quick flying setups currently available - are missing out on a revolution in model flying.
I have never had as much fun - and put as many "whys" and "ifs" to rest as I have since I started playing with these.
The info learned -thru direct observation -may not impress some who have not tried this approach -but it sure seems to work