Maybe I’m overthinking this, but the flue connection for this Lopi declaration insert doesn’t seem like a very good design. The appliance connector is a loose fit at best and only engages about 1/2” into the stove collar because of a welded tab that I assume is to prevent contact with the damper rod. The manual doesn’t speak to sealing this interface at all, just securing with the 3 screws and brackets. Is it worth sealing around the connection with furnace cement or something more robust? I’m also contemplating cutting a notch in the front and back of the appliance connector to allow it to seat deeper in the collar without contacting the damper rod. Would this cause any issues?