Would there be any benefit to using my 60 lock to faster boost 1-2 characters while muli-boxing.

I've been thinking id level a hunter and druid as duo. Not sure how i would use my 60 lock or if it would make the leveling any faster.
Maybe drop the hunter and duo level as a druid and 60 lock.

My goal is just to get a healer on another account ASAP and I dont wanna solo level it because its dull and boring.