5D II doesn't seem as sharp with good lenses

I like my 5DII on the whole.

But when I view images at 100% they just don't have that biting sharpness of my old 5D.

e.g. today I tried my 85L II and at 100% on the old camera the sharpness even wide open blew your socks off. With 5DII its kind of mushy. Not terrible, but not as good at alll. So its same lens, same photographer, just different body.

Is this to be expected?
I noticed same with my 70-200 f4.

But my 24-105 when stopped down is about the same as old camera...its mainly a wide open problem.

Any thoughts?
Tried messing with micro adjustment which made little difference really.