My four man crew is level 19-20 atm.

As everyone does, I'm trying to map out the most efficient way to level them. I have a level 70 warlock as the booster. I was pretty underwhelmed with RFC at level 10'ish. I saw a post in tihs thread from Eto that indicated (anecdotally) that the closer your lowbies are to the intended level of the instance = the best exp rate. Anyone have anything to add?

My plan prior to reading this post was to get my crew to 20 and hit SM. Use my VW (or FG) to pull, and burn big groups down with SoC. However, I'm wondering if a lower instance would be better?

We really should put a definitive Wiki entry together on boosting strategies. Seems to be a pretty common question.

Thanks.