I mounted the rudder and elv. servo in the tail just under the front of the stab. (Hitec HS225MG)
I also used Hitec HS81MG for the ail. servos.
One Hitec HS 55 for throttle.
I did all this to keep the weight down and move as much weight to the rear as possible.
Then a mounted a Saito .91 up front with a APC 14x6 prop. The finished model weight in under 5.5 lbs.
I sure love that vertical.
It flys great and the extra power is tooooooooo much funnnnnnnnnn