I use Glen's rails earlier this week. I was very happy with the rails and will continue to buy them. This subrails were smooth on the top and the facing was sanded nicely they looked great recovered. I have been buying Penguin but have been noticing that the cushion was coming unglued and I was replacing t-nuts on pratically new subrails. The Ridgeback's have fluted t-nuts that bolt easy. The cushion plays great, the adhesive is better, they look good and definitely Heavy duty compared to stock valley's or penguin subrails. Nice job Glen.