Tucson and El Paso are only defended by two rangers, a militia and a cav element, unless the CSA wants to spend a lot of money on building a supply system to Arizona.
The Far West is locked for a while and the Union needs to address Supplies there, also, afaics and have experienced. Your reminder about 'Build Depot' cards is useful. Still, four (4) VPs? That's not a lot.
The Union can also rush HF while the CSA is defending Manassas.
I think many experienced players have considered this and tried it. Some of these players were playing the CSA, too. This guy called Jackson just won't co-operate sometimes. Just FYI, havi was kinda stubborn about the whole HF thing and it wasn't until I started to change some aspects of the larger picture in VA that he finally yielded HF & then the Valley - in 1863, IIRC. Funny how things just work out that way sometimes.
By snipping off a few VP cities the Union can zero out any CSA per turn accumulation before it becomes overwhelming.
Just a few VP cities and we're golden. Just a few, mind you: three, maybe four. And play every VP++ Card I can find. OK, I get it, that's how I make up a -350 deficit.
You're not going to make up a serious raw deficit until you are leading on net VP gain per Turn, trust me. In two PbeMs now, one was quicker than the other. And the net difference per Turn has to get to at least twenty or more, otherwise, it's just too slow. This, of course, depends highly on particular circumstances.
Your last statement seems to me to amount to, "Hold on to Louisville and St. Louis and buy Cards." Is that right? Am I understanding this correctly?
Silly me, I thought I needed to do something as the Union. I will grant you, the fire under the posterior ain't what it was in AACW, but, from what I have seen, in both AI & PbeM, it's all too easy for the Union to be down by 200+ VPs by the winter of 61-62. I will also grant that it seems a little too easy for the Union to take Tennessee, some other places, and start to get back in the ballgame, if not win it.
But I think there is a certain onus on the Union, imperfect as it may be. And I think that the overall VP situation needs some fine tuning. So far, though, the game seems competitive.