Actually IG they said they did not have the standard servo so I asked them whether they had anything similar to it. The showed the servo which I currently have, I never knew all servos are NOT the same so told them OKAY.
would it be to add a pair of NO switches to a single pin w/ one tied high and the other tied low. Then react when that pin goes high or low? My suggestion is to use a pair of switches as limit switches to control how far the servo turns. Maybe look at what fritsl or TheCowGod did on their little drum machines as at least one, if not both, used motors instead of servoes to do all of the work.