I have a student that insisted on " flying the box ", turning the box instead of moving the sticks. It took a couple flights before I relized what he was doing, then when I corrected him he wouldn't do it for a bit then he'd go back to Flying the box .

I got a tray for him and we used it for a few flights then he made a copy for himself. He doesn't use it now and I haven't noticed a lot of box flying. Maybe it helped, maybe not. I'm not a tray or strap flier but have no qualms about suggesting it if it will help. ENJOY !!! RED