hmm trrue i suppose, i never heard of it affecting zero
got my panorama 40mm on a one piece mount and its zeroed at 25m, before i go out il put it on and see if its affecting it at the same range.. hope not, and i really dont see why, it shouldnt be putting too iuch presure on the scope, or why would they have invented scope lamps in the first place....>???.
i have a tracer mini by the way, il let you know what happens