ChuckS I understand what you are saying. The slide skis from duoform they go under whole length of slide and have a lip on front to keep it from moving backwards when slide in moved in, also it is attached on side of slide under trim molding on the side which I would think it would keep from moving back and forth. There are videos on there site which shows installation
https://www.duoformplastics.com/faqs...skis-used-for/
This will show you what I’m talking about.
Thanks for your input it gives me a few more things to think about.