I have a new Audi S3 (2016) and after some time out of the detailing scene I am back in due to the new car. When I got it few months back the windshield has some bad water spotting so I polished it with some 1z glass polish and a MF pad, cleaned it up pretty good but have always noticed the glass is not perfectly smooth but almost a grippy feeling. Glass was clay bared and cleaned and wiped down with IPA and still have the feeling. I also applied CarPro Fote and did not help. Thinking I messed up the application i polished with Nanolex glass polish and re-applied Forte today and still almost has a grippy feel. I cleaned all the other glass with spray away and other glass panels feel the same at times but not as bad. I polished small portion of a side window with Nanolex and now when wet that area stands out as splotchy - and when using glass cleaner that area seems to stand out also. The area polish is also not as smooth - not rough but almost a grippy/gritty feeling. I tried cleaning with Nanolex EX, IPA, QD, water, white vinegar and can not get the feeling to go away. Application of reloaded does make it smooth again but still wondering what the polish was doing as it gives it a grippy feel. Even after application of EX or IPA the polish residue should be cleaned away. Doubt any coating was applied from Audi as there is a TSB saying to use 3m glass polish to clean windshield if needed. Anyone have this grippy/gritting feeling ever after polishing or even before?