The last scope I tried out and compared to one of my Leupolds was a new S&B PMII that a shooting buddy brought to the range. Refocusing both it and my older 6X42 Leupold did not show either us any more detail at 6X with either.
One of the guys here bought another new S&B. At 25X, he was delighted to see his .30 bullet holes at 760 yds on an unusually clear day. While very impressive, my VariXIII, made in the mid 90's, can do the same thing at 40% the range when set at 40% of the magnification. So just where is this so called "optical superiority ?"
If the coatings were gone, or significantly damged, on the older 4X B&L, it would have lots of flare and other odvious characteristics. It doesn't. What it does have is a drastically smaller eye box. E