darktone: Just got the level 52 irons for a two hour rental. I like them compared to what I have. But I think I will wait for better ones to get unlocked.
I agree that waiting for the Ping (L59) irons is the way to go. When I was where you're at, I also had a nice 3 wood. If I recall correctly. it was TaylorMade R15 (L41). I also had the driver you have. So that combination (see below) served me very well and took me to Legend without a problem.
TaylorMade R1 Driver (L48)
TaylorMade R15 3 Wood (L41)
Ping Irons (L59)
Cleveland wedges
But I didn't upgrade my putter until I got to L70 and got the Versa. In any case, the above worked for me.
Hope this helps!