Since all of the trainers you mentioned are excellant trainers, I recommend that you contact the club where you will be flying and taking lessons from and find out what most instructors are using. It wiil make is easier to find a buddy box without buying one. Our club has the luxury of having three trainers, two use Futaba radios one one an Arrow uses JR so we have buddy boxes for both. Your club may not have the kindness of LHS's who donate trainers to their club, so you decision should be based on buddy box is available.


Terry