one more small suggestion to your guide.. personally, i don't think your idea of maxing wall and prison are effective.. i'd rather max bone spirit and bone spear, with one pt in bone wall.. reason: as a summoner, you have 0 offense.. i'd always like to have something as a backup skill to support my skeles, and i've seen that spear works pretty well in UT, with its piercing nature and all..
but overall.. AWESOME guide.. i've always used the same setup you discussed, with the change that i make an Iron Golem out of an IK maul the first time.. 40% CB ftw.. then, if it dies, i make a clay golem..