You're welcome bud
To expand on that, to be fair the old Mk1 is hardly a bad lens! The big question when the MkII was announced was why?!
But now it's here, it is indeed usefully sharper than the Mk1 but you'll have to look close to see that and I don't think that's the biggest advantage.
The thing for me is that the sharpness is so high it has got resolution in hand that comes to life when you put a teleconverter on it. The old version was okay with a 1.4x, but the new one is really quite good even with a 2x. It's pretty much a match for the 100-400L, which is really quite an achievement.
So, if you look at it that way, it is not only the best 70-200 2.8 known to man, it is an incredible 70-400mm f/2.8-5.6 zoom - with 4-stops IS and weatherproofed. Just one lens with a TC to replace two big expensive zooms - flippin bargain.
There's a detailed review on the-digital-picture.com
http://www.the-digital-picture.com/Reviews/Canon-EF-70-200mm-f-2.8-L-IS-II-USM-Lens-Review.aspx Check out this link and compare it to the 100-400L. Toggle on the arrow in the middle
http://www.the-digital-picture.com/...p=113&CameraComp=453&SampleComp=0&FLI=4&API=3