jkochmit1, first off welcome to the forum!
Reading the Slide out /Underside wearing
thread some folks are still having problems with newer units. Might want to start at the most recent post and work back.
Think its all about whats underneath the slide,weight and size of the slide. I can say I will think twice or 3 times before buying a fabric bottom slide unit again. One of my under slide -outs is painted with a truck bed-liner material and is holding up well. The slide strips so far are holding up well as a remedy for the other super slide..
Know my Tracer had no problem with slide wear, but it had no fabric on the bottom.
Now as to the Avenger , whats on the slide bottom?