I have been having a problem with the convertible top material fitting into the Windshield Frame being too loose to hold in place on the road. Started noticing this in 2001 on our trip to the Oklahoma Indian Territory. Had to tuck coins into the channel to hold the top material in place in the channel.

I'm wondering if anyone else has ever experienced this problem and if so what they did to correct it.
I have enclosed a rough sketch to explain the problem. The convertible top man is going to add some material to the front that tucks into the windshield frame channel which will hopefully correct this.