My mic closet as it stands contains : AKG Solidtube, SHURE KSM32, AKG C3000b, AKG C1000s (2), Sennheiser 421 (3), SHURE SM57 (2), AKG D112, EV RE20. I believe that the weakest link(s) in my microphone suite are the two AKG C1000s (I can almost hear the seasoned pros sitting around and one says "Did you hear the one about the guy who walked into a bar with two AKG C1000s? HA-HA-HA!). I use them mostly for overheads on my drum kit with emphasis on capturing cymbals. I have been looking at either SHURE SM81's or a factory-matched pair of AKG 451b's. As far as I know, SHURE doesn't offer matched pairs of SM81's but from what I've read, the SM81's would probably come out on top in a poll. Would I even be able to tell that the SM81's are not a matched pair? Any thoughts?