Servos that don't center properly result in a bird that won't hold trim settings consistently.
I have a pair of 615MGs running the tail of my Ultra Stick. These servos have the same tendency to double-center - the plane tend to climb, dive or yaw slightly depending on the last input given. Very annoying.
As for my Cap (still unbuilt) - I'll be using the following:
- FMA 3601 coreless servos on all flying surfaces (two on the elevator)
- JR 517 or FMA 360 on throttle
- CF pushrods for the elevator and rudder
- H9 titanium links on the ailerons
- Ball links on all flying surfaces - 4-40 size, I guess
- CF landing gear (from troybuiltmodels.com)
- Either 3.25" or 3.5" rubber wheels depending on what fits in the wheelpants (I haven't looked) - our field is quite rough
- Sullivan tailwheel bracket for 10-lb+ aircraft
- Mvvs 1.60 gasser
- 18x8 or 20x6 prop once the motor has been run in
- Al spinner
- 4-cell 1650 NIMH rx pack
- 4-cell 1100 nicad pack for ignition
I've probably forgotten something, but those are the major items.