As I understand it, a warrior is stunned when it reaches 0 wounds and then put out of action when in takes 30% of its original health below 0. What if that 30% was doubled for Dwarfs? It would maybe do a better job of reflecting them being twice as hard to kill and would also have them be stunned way more often in the early game. Once they start getting some skills they will become hard to/impossible to stun (also similar to TT) and you get some really tough little buggers. If Gromril armor is cheaper, then with the addition of their built in 15 defense to mimic high toughness you could very quickly have some heavily armored Dwarfs who just won't die or be stunned running... er, well, walking moderately slowly toward objectives. I think that would be really fun to play with, it would definitely take a lot more finesse in positioning to protect objectives and important warband members, but that's kinda what Dwarfs have always been. Will Skaven run circles around them? Of course. Skaven have always run circles around Dwarfs. Each warband has bad matchups and good ones, that's what makes the variety so interesting. Anyway, that's just my two cents.