awesome looking drum there Conroe.
Just wanted to mention, since no one else has recently, different brands of coals also burn differently. It's kinda obvious but it's part of the dialing in process I guess.
Other than that, perhaps less lit coals to start. Try a few more runs before you do the diffuser. Good luck, great build!!
Cookin' on a very ugly drum. But hey, it's simple and make great eats.