I'm still following this one. It seems nicely balanced or you may have a slight advantage, I'm not certain.
A Soviet offensive in the Smolensk area is going to be nasty for you when the tide turns. That's his trump card. You are wise to fortify the land bridge and I think I would be turning the whole area into a massive fortified zone.
Love the fluid situation in the South. I've never experienced that position in a wite game (I've never attempted a Case Blue). In my opinion if it's likely to succeed then the game is probably over already. Great fun though I'm sure.