Too much Head rotation, easy if you know mdl's

I just did a little geomerge and the head rotates in too much of a swing, i'm undsure what to change, i know theres a rotation but i'm so new to mdl stuff that i barely know what i would want to change it to. By the way the bone i want to alter is artha's head bone. i want to make it rotate in less of a swing. Oh yeah and i read mad's little documentation, very nice, though i'm still unsure what exactly i would need to change, if you could post the line from mads stuff and highlight the numbers that i need to change or something that would be greatly appreciated.