I used the Bladez from Master to Legend and loved them.
A few weeks ago, during the 'Free Rental Weekend" I tried the L85 Irons & played 8 or 9 rounds with them. The 85's pushed the ball out about 5 yards beyond the Bladez but I couldn't see much other difference between the 2 (so I chose to wait).
Three days ago I bought the R11s (finally got to L90) and have been working them ever since. Tonight I shot a 29 in the BPB F9 monthly Legend tournament with the R11's - and- if I could putt - it would have been more like a 27. That is 1 to 3 strokes better than I was doing with the Bladez. The meter is pretty quick - but if you shoot 2 or 3 18 hole practice rounds with the free WGT starter ball - the meter is easier to handle.
Lottsa words - bottom line - wait for the R11s and keep notes on the corrections that you are using (on each course) with the Bladez - you'll be amazed at how close the R11 corrections are to the Bladez : > )).
Good Luck, John