Brown Dog ,
Did just what you are suggesting for my Nikon 10x50 binocs. In order to find a good fit I had to go to a dealer that had a full selection of the Butler caps AND was willing to let me manhandle them till I found the right ones .
Worked out great , super fit and good protection . Go for it , cuz your binocs are a /ubbthreads/images/graemlins/grin.gifbit more worth saving than mine /ubbthreads/images/graemlins/laugh.gif
JIm B.