Honestly, I score the same from the Blue tees with Master-level equipment as I did from the white tees with lesser equipment. I know I am probably a big anomaly in that regard however. Nevertheless, if we are to look at the comparisons, I've never seen a Pro hit the green in 2 on par 5's with any regularity. That is something I do often now on both courses from the Blue tees with Master-level equipment. That's a potential 2-4 stroke swing right there.
Case in point: The last International tournament was at Bethpage from the White tees. I shot a 53. My best score with the same equipment from the Blue tees is 56. Take away the Master-level equipment while playing the White tees and it seems to me it's right back to even again.
Someone was saying something about par 3's being easier from the Pro tees: I personally don't agree with that. Once you get your yardages down for each hole, adjusting for wind, it's really just about hitting that little white line in the middle and then draining the putt. White tees don't help with that :)
Anyway, from what I see from even the most obvious sandbaggers in the Pro division, they still aren't shooting as well from the Whites on their best days as I am from the Blues, so to me it's better to be where I am.
Heck, I'm ready for the next tee box back :)