I had the same problem, seems all the repops aren't that good. When I adjusted the latch all the way down I could slam the lid shut. I had to let the gasket settle and adjust the latch little by little over about a month until it was where it needed to be. When I posted just about the same question as you I was also told by another member to get paint sticks and clamp the gasket all around for a few days till it settles if needed.