I just reached it last week. Big difference is the long irons into the greens. I've got the Bladez and the G20 driver, clubs are not the problem. The biggest adjustment has been putting. The greens are just a bit speedier, and since the ball is moving slower, the breaks are more severe. No more ramming putts in like I did before.
Dial in your flop, its a lot easier just to fly it to the pin and bite, than it is to figure all the breaks with chips and pitches.
I thought I'd never be able to score again, but with persistence, I just logged a 28 for 9 on RSG in the unlimited 9 hole tourney. The game is actually more fun now.