Lou55,

That servo will do 124 oz in on 6 volt... but that's still a little low for "all out 3D" you'd probably get some blowback.

I'd recommend looking at a minimum of 175-200+ oz in.

HiTec 5945, Hitec 5955, JR 8611a, Futaba 9153 would all be excellent choices.

Keep in mind that this is a GREAT investment and can move with you from plane to plane.

Also, I'm sure you already know... but you cna put a JR/HiTec servo on a Futaba receiver with other Futaba servos... Mixing and matching is fine...