Not tough to grasp but as I pointed out earlier there are actual reasons like one less lens element compared to variables that give them an advantage and then their is the view. I did about a 8 scope comparison one time all against a swarovski 30mm fixed 6. Had variables from leupold a few 1 inch and 30mm mark4s, burris, Swarovski, leica and s&b. All set on 6x the Swarovski 6x was markedly superior to the leupold and burris scopes. And although really no brighter than other alpha glass as far as anything usable it was definitely easier to get behind and felt clearer to me.
Just my 2 cents. I like them all , getting snobby about glad as I get older and fatter. Lol
