one of the guys in our clubs calls them wheel chairs cause he thinks that your maybe not strong enough to hold a transmitter the entire flight or some thing like that. i just never heard them called any thing else so i didnt even no what they were called until the above post called them a tray thats a more apropraite name.
i like to use the strap myself . it takes the shake's out sometimes you can relax your arms more and concentrate more on you flying. and like the guy siad above swat a bug! man a horse fly tried to bite me yesterday while flying i dont know what i would of done if i didnt have my strap on ! them things hurt when they bite. and a strap keeps my fellow fly boys from come over and saying "let me try out your plane" they hate to unbuckle my strap just to fly my plane. not that i really mind them flying it. just i dont want to give up my flying time .
any way i just wanted to hear what everybody else thought about the strap or the tray or just hold the thing out there like it its gona bite you. and yes you do have to be careful with your strap it can get in the way real easy. i keep my strap around my neck and tucked inside my shirt until i'am ready to take off