One thing folks, if the stove is over-drafting or leaking air, packing it full and letting it rip may not be the best idea. The OP is a new user to the stove. Reported 650 temps are good. Some of these quads are reportedly pretty easy breathers. I would make sure there is a modicum of control over the stove first and that the OP gains a little experience so as to avoid over firing.
That's what I am concerned about. I have been getting temps of 550-650 with 5 pieces. Worried that packing it right might cause an over fire. It's hard to fit more than 5 pieces. I have tried.