Works perfectly fine with a decent amount of IAS. Maxing werewolf helps with attack speed - you don't have to be down to 0.5 fps to be hell-pwning death machine.
Not sure if I'd try it on a werebear though - they don't get the crazy attack speed that the pups get.
It's an awesome DClone killing weapon, by the way. Crushing Blow + Amp is a nasty combination in conjunction with Fury and a fully charged Feral Rage (and if you use high level Heart of Wolverine instead of Oak Sage, it's even nastier).
The Cranium Basher is a very underappreciated item.
thanks for the suggestions. the CB and ctc amp are just too enticing not to give this baby a whirl with a new build, even if it is slow. right now, i can't really decide between a zerker barb, a leap attack barb, a charger, a fury druid, or a shockwave werebear mauler. it seems with such a high strength requirement on the weapon it might be best to aim for a build that maximizes the damage output from placing so many points into STR. that would argue in favor of a leaper or zerker. but then druids natural speed increase with fury would partially offset the slow speed of the weapon.
hmm, i must choose carefully because making new builds is a royal pain in the arse.
I built a zerk barb that swung one of those babies! Wore Leviathan armor to help with strength reqs and DR. It wasn't the powerhouse I had expected but he held his own in much of hell, as I recall. I remember going nuts trying to level to 87 so I could use it and by the time I actually got there I was bored of playing zerker.