5945's is a good choice and it's also what i'm running. if you wanted to save a few bucks that would be more than enough for the rudder also. if not, go with the 5955. just as strong as the 8611 but it has titanium gears that won't wear down as quickly as the metal one's in the 8611. I run both of them and they are both very good servo's. do you have servo's for your ailerons? if not donalds hobby shop http://www.donalds-hobby.com/Prod/sc...idProduct=1089 has a good deal on a 4 pack of 5945's. $300 / which comes out to $75 a piece. normally $89 a piece. if your getting just 2 servo's i'd go to tower. they have a discount for buying 2 comes out to $87 a piece.