Redemption is CRUCIAL for any good mf hammer.
My method is to tele on top of them, spam hammers for a few seconds, if they dead, good job, otherwise quickly switch to redemption and back to redeem all the corpses for life and mana. One thing I don't like about this guide is using the F keys as hotkeys. It is FAR easier to assign them to the left hand letters on the keyboard, this gives you the ability to use your left pinky to shift cast when necessary and if you don't have a expensive mouse, have alt at hand to quickly check the drops, especially useful when chaosing or baaling and you want the advantage with getting the juicy drops.
Also, don't get too hung up on great gear for this char. Anyone with experience knows you don't need a GODLY hammerdin to effectively MF, a pretty low hammerdin can EASILY take out everything in the Pits, although if you have the gear and in excess of 3k life, this will make Travincal and Nihlathak runs easier. For Nihlathak, ensure a Natures Peace is handy to prevent him using his pesky Corpse explosion and watch the damn tomb vipers, DO NOT tele on top of them, spam hammers and be ready to tele when they release Poison. This is also where having a Mercenary with Dream is AWESOME, as he will invariably get hit, cast confuse, and you can stand safely to the side and spam until everything is dead.
RC.
