Re-Sealing a older humidor

[mrtapes]

Hi guys,
Earlier today I was on another site I frequent and a guy had some humidification issues.

A member made a comment about a "Dollar bill seal test", where you take a dollar bill and place it on the edge of the humidor, Half inside the box and half outside and then try to pull it out. If the bill slides easily then you have a loose seal. I have a couple of older humidors so I thought I'd give this a try and test my old ones.

They both failed the test.

The humidors hold a RH pretty well but as we all know the battle for the perfect humidor rages on amongst us.
Both of these humidors are spanish cedar interiors and that is the material around the lip/seal area.

My though is this, Have any of you guys ever done anything to tighten the seal on an older humidor?
And if so what?

Floor open for discussion!!!!!