I've read many threads on this topic, but I'm compelled to start yet another thread as I have a somewhat newer situation:

I finally bit the bullet and setup 5 computers with 5 accounts in hopes of setting up a raiding 5-man team. My main is actually a 5/8 Tier 6 tanking druid and I also have a T5 raiding priest as my foundation. Unfortunately I only have 4 70s, so I thought that I'd start a new group to get to 70 and experiment with swapping characters in and out of the team.

So, first step is get some more characters to 70. I've setup 4 toons and leveled them to 10 so that I could run them through Deadmines with my 70 mage. Unfortunately, I did 1 full run and found that they only got half a level each. This took many deaths of these level 10s and quite a bit of time. I am certain that I can get this to go faster, but a Deadmines run for 1/2 a level seems like quite a bit of time for not a lot of reward. What am I doing wrong?