I use them and really like them - the neoprene is thick and really protects the lens AND the entire scope body. I leave them on in the field and can take them off in a second - my only issue is that I wish they cam in dayglow orange so that I can find them when the light is low or if I drop them somewhere.
+1 Scopecoats work very well and with a little practice, can be removed in an instant. Yes, I have lost a couple but I would rather replace a lost Scopecoat than a banged up scope.
donsm70