I tried this today, took me a couple tries to actually find Zolo, even with him showing up on my minimap. I reset four times, then couldn't enter anymore instances so I logged out for an hour and retried. I had to leave my mages at the beginning, and go through and kill the mobs on the way to Zolo. I still had all of my shields from running SM, and only wasted one. Took me a while to learn how to move them around keep my back against the wall while trying not to kill Zolo, and then resetting when he was low on health. 35-40 was a breeze once I got the hang of it, but took me about four hours, but still better than being stuck in SM.

Then I tried this with one level 39 rogue in my guild, and in two hours he leveled to 50 in way less time than expected.