Dr. Duck...
Check your holes where the ttop pins slide into...there should be a plastic sleeve in there. If it is cracked and broken like mine, the sleeve rotates until the pins are flexed to the outside of the hole, with no plastic between the pin and hole side.
If you have no plastic sleeves...they will still flex to the outside of the hole.
If yours are winging out at the rear edge, this is what I believe is occuring, same as mine. The sleeves need to be replaced so the ttop pins fit snuggly in the holes.
5 year old w'strip should be just fine...since it is so 'fresh' it will have a little extra muscle to it and want to push away from the surfaces it is pressed to. When I replaced the w'stip on my tops I noticed that in front, the top was 'bowed' up in the center because of the elasticity of the new w'strip.
Maybe I could have avoided that by loosening the latch grip at the front corners...I don't know.
I'm looking at my ttop repair kit, and it appears to have stuff for the latch (new stoppers) and the sleeve and pins for the rear edge. There are also a lot of screws, some flat ended and some with points...I don't know what they're for...that's why I'm waiting for Kenny.
Heidi