OK cj, ill take some heat here but ive been flying my 46,s with a 6102 with jr537 servos and 6v since i bought my first one a year and a half ago, and never had a prob with the rudder, now i do admit that id like to buy a BIG servo but i only buy jr and they cost too much, and like i said my rudder always works so im ok and i think you will be also ........ go for it