I don't have any experience with the new Blades (only the BLX) but from what I've read on the forums, it seems that some ppl who have played with both (18X20 version) the difference in play is minor
I read that you could save money & still get a very similar performance to the new models by buying the old BLX ones
I just bought the pink BLX blade & gotta say that it's a very solid racket. I'm a longtime Head liquidmetal radical user who was looking for something very similar but with a bit more pop - especially on the serve. I've been searching for a long time & have gone through many rackets but this one seems to be promising. Still working on getting the feel of it at the moment as I've only had 2 good hitting sessions.
What exactly did you mean by Wilson having lost the plot with the BLX? the reviews & feedback seem pretty good
blx blade 98 with adrenaline rough 1.25 @ 51 lbs