I recently switched from Tommy Armour 845s to Mizuno MP 32
For the record, I have a HCP of 6.5 with a varying ball striking quality. It's the short game that regularly gets me under 80.
The MP 32s are not quite a blade but they do have a lower Maltby Playability factor then severeal of the Mizuno blades.
I've played the original 845s since 1990 so they have worked pretty well. But there were three things I didn't like about them. 1) Progressive offset. IMO, offset is just a disturbing factor at address. 2) Lie angle - too upright and 3) A slightly balooning tencency when I hit steeply down on the ball. The combination of fade and distance control was also very difficult to obtain. Also, hitting low punches was risky business unless I used a very easy stroke. A fourth moment that eventually developed, was a sense that the feedback was better than the result on certain shots.
The MP 32's have stiffer and heavier shafts, which probably accounts for several differences. There's probably a difference in center of gravity height as well. I bought them because of very good reviews - they looked slightly more forgiving than pure blades - and because Mizuno have a lie angle that suits me much better than for instance Titleist.
I haven't noticed any more penalty on off-center hits than before. But the feedback is corresponding better to the actual result than it used to be. At address, they look much better - so it's easier for me to do a good swing with these clubs. And fades and punches works much better. I've punched shots under trees with 6 iron that I previously would be anxious to do with a 3 iron. Also I can - and should - hit down more aggressively with these clubs - something I often was penalized for with the TA's
Only negative thing sofar - I haven't quite adjusted to chipping with the pitching wedge yeat. Whether it is due to stiffer shaft/heavier club or higher center of gravity I don't know, but I am struggling a bit with a low and hot trajectory on those little shots.
All in all I am very very very happy with the new clubs.