Great mod! Really addressed some outstanding issues. I do have some short thoughts on the mod however;
Cavalry is perhaps a bit too cheap. There is a substantial difference between 10 armor and 20 armor; its not just double in effectiveness, its like 4-5x. So when you make, say, Black Knights cheaper AND stronger, they become pretty much the buffest national units in the game. Which may or may not be a bad thing, balance is not a zero sum game and Ulm pays for its Knights by being weak in many other areas, but i gather the Cavalry mod was added in at the last minute and didn't go through as rigerous a testing procedure.
I like the Firbolg Rule of Thumb; is this recruitable unit better than a 10 gem, 5-Path Firbolg? If it is, and its only costing me 50 gold, you might need to think about adjusting something here or there.
Short Bow archers seem useless now compared to xbows because everything has fairly decent armor. I think, imo, a bit too much armor was added to the game...at least with indie troops.
Some random thoughts and obserations:
Prince General has not been improved. Still 10/10 hitpoints.
Lowbowmen have 10 precision instead of 12? That should be changed back. I'm not really certain i like the Change; a weaker, faster firing crossbow...
I like the Change to Imperial Tien Chi troops.
Could you buff Black Forest Ulm's Illuminated One's somehow? Give them the assassinate abiliy, or a slight chance of causing bad luck in the province they occupy. They aren't bad, but BF Ulm is a pretty weak theme that relies almost 100% on a buffed VQ. Trying to play them WITHOUT a combat VQ is a very difficult exercise with their limited magic skills and poor morale troops. The Illuminated Ones are well rounded but rather inefficient per cost; and with death, BF Ulm has a hard time with upkeep, so a 160 gold non sacred caster is more expensive in the long run he looks at first. I see the I.O.s as a kind of traveling old man, with train of servents and hooded girls behind him, journeying to dine at the tables of foreign kings and dignitaries; practising unholy rights at night in his room when no one is looking, throwing poisonous converational barbs at state dinners, subtly manipulating the crowd, stirring up strife wherever he goes, and sometimes just for kicks dominating some poor serf to go burn his own house down, or kill some noble he disliked.
So i'm fond of them

but would like them to a be a bit more powerful than they are now.