Has anyone else experienced trouble, with new windshield trim clips breaking? Options

[ChrisFoley]

We have to remove a brand new windshield to replace all the New trim clips made by a popular vendor. They're so brittle they all break as soon as you try to install the trim. (IMG:style_emoticons/default/WTF.gif)
More than 3 hours of labor generated by using substandard parts. Seems unfair to charge my customer and I'm not happy about eating that either, except that I'm the one who recommended the vendor. Never again. (IMG:style_emoticons/default/dry.gif)
Buyer beware. I'm going back to Genuine Porsche.

[Mikey914]

The factory ones to break over time. Many of us have experienced the trim departing the car. I did a little more looking at the instructions and thought about the technique I used to install my last windshield.

My conclusion -
Yes you can use the 9.5mm butyl, but the way I installed it was by leaving the backing on, heating it on low with a heat gun and using a 12" metal ruler to flatten it.

I did it this way because I wanted more surface area to bond to. The net result is a thinner area, but more surface to bond to.

The factory actually says use the 8mm, BUT and here's the interesting part, the factory butyl had a wire that was used to heat it internally to make it more pliable.

The primer is recommended, and I installed without on a clean new windshield. There is actually a better primer made to bond to the glass and react with the butyl specifically that I can get. I'm bringing some in this next week. It would be the best option.

What we are doing -
In the next week we are bringing in some clips from the dealer and evaluating specifically tensile strengths of both and materials. We may have a "better than factory " material available, we just didn't go there initially as these are a pretty simple part, so matching material was the option we chose. Nice thing about making our own parts is that we can change out material at any point.

More as this progresses. Also, any pictures of failure are GREATLY appreciated as the break will tell us about the mode of failure. Mark, did you save any broken ones?
Thanks