I have shot and rebuilt literally hundreds of both over the last 39 years and a serviced Feinwerkbau will always outshoot the 75 in a experts hands, if either is neglected the FWB will survive but if the 75 is shot with bad seals the teeth on the rear of the pistons will break off and you may end up with a door stop. Build quality on the Feinwerkbau is superior in every aspect.