any problems with "in-channels" interfering with window operation or scuffing tops of window glass where they make contact?

 

no chaffing of window the plastic shows signs of rubbing.no interference

 

Cool and thanx for all info and comments. "Good eye" for someone pointing out that only Weathertech covers the whole rear glass as opposed to just the retracting portion of rear window. If I could figure how to post pics, I'd be glad to show some of my own "handi work" projects on my own HHR. Have made set of polished aluminum diamond plate running board covers and modified set of run-board covers with 1/4" stainless steel round stock radiused to fit inside the recessed grooves on my stock covers for winter. Made bumper plate covers to match. ETC... If interested in pics, just E-mail me

 

Here's a link for posting pics.........

https://www.chevyhhr.net/forums/site-development-help-announcements-18/how-upload-add-pictures-your-post-old-3033/

I'm sure everyone here would love to see these mods!