I have Butler Creek flip up caps on almost all of my scopes, but I need to get caps for a few that are still nekkid. Are there any other ones out there that are any better (fit/function)? For instance, I need a #45 for the obj. of one scope and I can't find it. I can find 43-44 and 46-47. They're a PITA to use on the occular of the Nightforce as well..... Sugggestions? I'd like to stay away from the Bikini style if possible - too easily lost in the field (I think).