Peter,
I don't know how different the processing must have been, but looking at the two thumbnails, the lower one instantly gives me a sense of greater contrast.
Perhaps you did, perhaps not, but unless tested on a really solid tripod, not much point in comparing, as shutter speed isn't always enough to iron out possible errors.
Also, you may be suffering from an understandably hyped expectation.
From my thin experience of printing Leica negs from an M3, it was partly the "tonal look" of the lens (in b/white printing) that gave the impression of something special; some deny it existed, but I am certain that I could see it, and it had little to do with crispness... There was a similar belief about Leica lenses when used with transparencies, but my work at the time never gave me that experience with Leica cameras/lenses, so can't add a worthwhile view to that...
Rob
