If I decide to change the reticle ,does I to compromise the scope in the long run?
(Looking at the Big 3,Zeiss,Swarovski & Schmidt Bender hoping they all offer this service.....at a reasonable charge!)

Tom. it's the same as if the original reticle broke. They disassemble the scope, put in the new reticle, re-fog and seal the scope. I've had it done several times.