ORIGINAL: Top_Gunn
Neck straps are dangerous; it's just a matter of time until one gets caught in a prop. A transmitter tray is safer, and it also gives you a surface to rest your hands on, which a neck strap doesn't. Robart (I think) used to make a cheap foam tray that did the job.
Easy cure for the strap is to fly jets.
Oh and be sure to grip the sticks with thumb and forefinger on both sides. Shaky hands is bad with that grip but worse with just thumbs.