Wanting to give closure to this thread, I thought I’d give an update. After tolerating the grease leak for quite some time, I did reach out to MAK for help. After going back and forth a few times, it was decided that MAK would manufacture a new lid (back half) for me. The new lid has welded seams in the back corners and the lid was made for me to screw down vs the rivets that MAK currently uses. Made the changeover a couple of weeks ago, and not a drop has leaked since. Oh yeah, I also laid a bead of high temp RTV sealant before placing the lid on the grill.
Bottom line MAK came through, solved the issue and continues to have one VERY satisfied owner