Hey Charlie,
My dog is a male as well and his manhood is intact too, (do unto others as you would like done unto you, right?)
Am Staff's at the end of day IMO are pits as all their show requirements are the same, its just a way to step out of the bad fame. Your dog is really nice though, nice build, did u buy him from a purebreed kennel?
Also do he have blue eyes? My dog is white face too and hes blue eyed which happens sometimes w/ white faced am staff/pits