Well I tried this and it didn't work.
My club has 5 sets of tees and I always play the middle tees at 6250yds (70.4/126). Beyond that we've got 6750yds (72.5/130) and 7100yds (74.2/137). Our club championship is coming up this weekend and they'll set it up so that we'll be playing from a mixture of the three longest tees. Incidentally the one's immediately shorter than where I usually play are considered the senior tees at 5450yds (66.6/117) and shortest are the "women's" tees at 5000yds (un-rated for men). Figuring that I should have some experience from the longer tees leading into the competition one golf buddy and I endeavored to play from the first set longer than normal for us (6750). Let me tell you that extra 500 yards beat us up this past weekend (I got to play the front 9 twice and the full 18 once). I'd say on balance the extra yardage only made a real difference on about half of the holes. The rest were marginally harder, but on the ones where it did it was punishing. It doesn't help that driver is the most vexing club in my bag, so on the holes where the yardage was significantly added a poor tee shot left me in a lot worse trouble than I am used to having to deal with on approach. My buddy, who's a 9hdc, and I were grinding to play bogey golf. What made matters worse is that the extra yardage also got into my head. I hit some decent tee shots but I hit some lousy ones too, and when I was in position off the tee I seemed to perform slightly worse than usual. I have the game to play from those kinds of yardages, but after the championship I'm going back where I belong.