someone asked me earlier "wouldnt this be better if you got 5 stacks first?"
yes and no
yes:
with the 75% bonus xp stack, sure its insane amts of xp
no:
why waste the time to go get 5 stacks? by the time you do that, you're defeating the speediness of this run. I have not tested it, but am sure that by the time you get 5 stacks, then go do this run, you're not going to see the same xp/hour
NOTE:
I forgot to mention this, and Cide will back me... comanions (DH and WD) will slow you down and screw up your run, as will mercenaries. Leave them at home!