I DO perform this kind of work for the public, and I usually fix this problem free of charge since it's so easy to fix. And as for your theory about it get so much weight on it that it breaks... I LOL'd! Give me a break, how would anything even build up on it? If your cowl is installed over it correctly, nothing can even get on it except water and maybe a little dirt, but it slants towards the cowl drain washing itself right off every time. If you actually believe that, then your car should fall completely apart at anytime due to all the little plastic clips that hold a majority of it together. The original rubber seal is sooo great, that GM actually saw a need to redesign it later, what a waste *sarcasm*. If you'll notice, I also did a write-up on how to fix this problem without using this new part just for people like you who don't think better is, well... better.