I agree, I have the 5-25x and it has only kissed someone once, he had some pretty bulky glasses on and not the greatest of form when he touched off that round.
I'm not really worried about it, I was just wondering if it gets shorter as the power goes up. Scopes that have a drastic change in eye relief from lowest to highest power drive me nuts, I had a Leupy that was sold after one range trip because it must have changed by over an inch.