Hi,
question is, for what angles are the Futaba servos geared?
Changing it with the programmer will indeed only change numbers, so if it's at 100 % of travel (80-60 in the VBar) and you set it to 80 (for 100-80 in the VBar), nothing in the equation of precision, resolution, torque, speed, etc. has changed, just the values in the VBar look better.
I'm not familiar what values you can expect, on a TDF, with 'standard' servos (I'd assume +/– 45° would be pretty much standard ...).
Kind regards
Eddi
Born to fly ...
forced to work.