If you want my honest opinion...don't upgrade anymore until you reach Legend. I actually played with the G10's (Driver, 3W, and Irons) all the way up to Legend, and I did it for a reason.
You, are pretty darn close to becoming a Legend. The best way to approach Legend is to get accustom to hitting longer iron shots. You already have the R11 Driver and 3W. From the TM tees, my guess is you don't even take out that 3 or 4 iron very often right now.
Looking at your scoring history, you may be in for some hard times if you make Legend too quickly. You already have all the best clubs available, and are shooting 32-34 with regularity. Those will become 35-37 when you hit Legend.
My advice: Since you already have the big boy clubs, I'm going to suggest that you spend a lot of time in practice rounds from the Championship tees.