[Endoperez]

Defining stats on decimal level would, in effect, add more possible values of stats to the game. It would allow units to have better stats and also allow smaller differences. The overall effect would be a difference of about two points in any and possibly all stats of any two items or units, in maximum. Looking at it from that direction, it is too little to have a big enough difference.

However, I can't think of anything else that would make Ulm better without making it magically more powerful/flexible, if we count over-human stats magical. Even reinvigoration would only make Ulmish soldiers last longer, as enemy gets less armor-piercing hits through. Any SCs/mages who can get through their armor (and there are many ways for that) would still kill them just as easily.