The proamps servos i switched to gave similar improvments in feel and connectedness with my sanwa radio.
Inputs were much more precise and there is no wander on straight sections or the steering not returning quite to center.
I was thinking of getting sanwa srg but thought id try these out and im very happy with them.
I ran 1252mg in my touring car for a long time and i thought it was pretty good. Id definitely say good for the price, but the proamps arent much more expensive than a high end savox and seem to compare very nicely to high end futaba/sanwa