SWFA has been talking about the SS variable for years and nothing yet. I prefer variables over fixed I keep coming back to this scope. Might put a 16X on a .22 rimfire for tactical/long range practice or use it on a centerfire once in awhile. Most reviews are positive. Great repeatability and tough. The recent ones are supposed to be very clear. Someone I know (a Marine armorer) spent two tours in Iraq and never heard of them. I haven't seen much on them on this forum doing a search. Anyone want to talk about them?