He's pretty fluent with Crota's End as well, if I recall. I'll check with him to see if he wants to run that one as well. He sits next to me at work, so it shouldn't take long.
Eventually, I will definitely want to run WotM, as I have not done it even once yet, but I'm happy to run newer guys through older Raids to get them immersed. Plus, I want those Crota ships something fierce.