Well I put on my OEM C90 windshield today, after I put it on I noticed some dirt on the windshield around the inside section of the bucket of the shield, then I looked again and realized that there were 2 pieces of plastic/lexan put together. Well this has to be a first for me dirt will and has gotten between the two and you can not clean the screen. Is this the way they are all made or do I have a bad windshied.