I fly pattern and use a tray, I have started using it with the helicopter and it really improved my flying, while I'm not a top flier it does steady my radio and can be angle to the desire position, which won't change between flights, before that I used the strap but I did not like the angle at which it hang on the strap so I had to hold it there sort of defeat the purpose....for some that may be their desire angle...

Daniel D.