I do not use nail clippers on the dogs anymore. I invested in a dremel tool (small electric grinder/sander). The dogs nails never split or crack now from a not so clean cut. Bleeders are also more preventable with the dremel.
Yeah, I bought one of those too. Can't get anywhere near my kids with it, though. They take off running as soon as I open the cabinet where I keep it! We tried desensitizing them to the sound and feel of it, even gave the best treats. No luck. Oh well, they do at least let me file their nails with an emory board after I cut them.