I picked up a BK Princess Insert exactly three years ago. It was purchased used, but previously uninstalled. We've run the stove 24-7 through the winter months for three seasons now. I figured that preventively I should do some maintenance this season, so I ordered a new cat (haven't experienced decline in this one, but when it does I'll be ready), as well as a new door gasket. I installed the gasket and now it seems that some air is sneaking in around the latch. Yesterday during a reload, when I opened up the thermostat I could see a streak of flames coming from the latch area. I've looked online and it appears that there is a new (flat) latch, and older (round) latch. I've got the round latch, which has been ground down some from opening/closing. I did the dollar bill test upon reinstalling the gasket and the paper is nice and tight top and bottom (probably can't pull it out without ripping), but seems loose on the latch side. I'm wondering if the latch being ground down some is the root of my issues, or if the gasket install was a miss. The latch is definitely ground down some and no longer perfectly round. Should I replace the latch? If so, should I go with the new, flat latch, or the older, round latch?