UPDATE

Okay, I decided to spend the time to set this up (going 1-10 on with 2 new toons, etc).

At 10 I ran Account A (80) with Account B + C in VC twice and watched my combat log. I was getting RaF experience.

It was frustrating at first until I swapped my DK for my druid since he can just moonfire the heck out of the place. DK wasn't killing fast enough since low level chars were pulling aggro from a mile away.

Not sure what the norm is, but I did 2 runs and they went from level 10 (no bars) to level 13 (few bars), so just over 1.5 levels per run.

Anyone know how to reset this instance without going all the way from dagger hills through cave?

Thanks for the responses. I'm glad this is working as I didn't like the 2-box questing (thinking it might be fine after 40, but getting going is rough).