Just my thoughts, but I am boosting in a similar level range, and my Beast Master Hunter is using BRD for the runs, the pulls are pretty easy, there are a lot of nice drops.

Its nice to complete the key quest line so you can use the "back doors" to run the instance, but my toons pull good XP, and lots of cash. I run a dis-enchanter and gathering the Greens/Runecloth/recipe drops and occasionally blues/epics have made it a great run.

I know this doenst speak to your direct issue in Sch, but just as an alternative option... your low lvls can enter as low as 40, which is a pretty big agro range, but do able.