Originally Posted by Tab
I've heard of others having to do it but I got my tsl's to fit so I didn't need to. I would be a bit worried about the new edge (without the metal trim piece) cutting into the bead when clamping down.
I've read that most don't have problems with the TSL's ... why? It doesn't make sense.
I get them to seal sometimes, but I'm tightening the down so hard that it's coning/deforming the outer ring.
I'm going to try and see if there's room to pull the edging off, grind off a tenth or so, put it back on and see if it helps.