Took my truck out last night. Servos held up great. Never had a problem with any of them. I'm very pleased at how nicely it steers now. I think I must have been imagining the centering problem, or perhaps it was slop in the linkage. Truck ran numerous straight-line passes down the pavement.
Shifting still blows me away, used to take forever to engage with my old Traxxas 2075 in there.