Chris,
What configs were used on the mics? There is a huge differnce in the soundstage/image. almost like NOS (stock) vs DIN (bm). It is hard to put my finger on it, partly because the sources aren't similarly ballanced l/r but the stock source feels like a slightly larger spread to me, and seems to oscelate some. Either that or your mods really seem to have a positive impact on the soundstage! The bm soundstage felt taller too. Like jeff's voice was about 10 deg higher with the mod... odd comment, I know.
I thought your mod really brought thoes 140's to life. Almost a presence bump, but most likely just the neumann's as they are supposed to be. Same with the low end. More detail and more meat with your mod. Both are a little sloppy but for a section recording either isn't too bad really in that regard. The strings seems to sparkle more with your mod. A much more realistic responce from the crowd. You can more easily position cheers and whistles, and the voices seem more clear with your mod. Seems to be a lot more "air" in the recording too. Did your mod produce a higher frequency responce?
Overall... night and day Chris. You did a really nice job! Makes me regret even MORE selling my r4. If these are identical configs, then I'm blown away.
Matt