RE: Phoenix Extra 330 elevator servos?
I used Futaba 3152 Hi Torq servos on ailerons and elevators, and 3004 on the rudder.
I've been gettiing the servos off eBay, just do a search. Tower has them for $24.95 ea. and I got the last ones 4 for $66.00.
My Phoenix Extra 330S weighs 7 3/4 lbs, with an ASP .90.