Try the new Hitec "econo" digitals HS-5475. I got mine for about $34 from my LHS. I have them on the ailerons and elevators of my UCD and they work great. I had some 615's on there last season but they are very sloppy around neutral (they had a lot of flights on them with another plane though).

I have a 5625 on the rudder (overkill on torque but priced well for this type of plane) ($54)

FWIW....I also run 6v rx pack.


http://www.servocity.com/ServoCity/P...b_digital.html