Here's my take. (and what I did)
I shifted his focus from a heavy cross bow, with the substituion of one feat to Exotic WEapon Prof: Heavy REPEATING crossbow..
and my version works JUST fine.. and aside from his 1/2 rounds xbow attacks Harsk is pretty flexible
My version, however, is a solid drinker of ale and other things fermented. sober teetottler dwarF?
That breaks my immersion. :D