I've never had a tip stall either. not sure why, I am really not much of a pilot yet. One of these days I WILL BE as good as Minnflyer, but until then, I alawys check the lateral CG. and when I taxi out, I set the throttle trim (idle speed) high, but not high enough for it to move, but just below movement. This keeps me from being able to full drop ilde during flight. which ensures, that even with the throttle stick all the way back, that I'm still flying with some speed. Thus far I feel that this has helped me with making good smooth landings. Of course with the trusty old trainer, I dont do this as it would never land. but for all my scale and sport planes, that is what I do. When I first started, I got tip stall confused with torque roll. on the decathlon I have, I tried a 13X6 APC prop with a 55 AX engine, it would roll left everytime I took off (torque rolled), I put on a smaller prop and torque roll (what I thought was tip stall) went away.