I am looking to begin work on a rainshadow 84xxh for an August 5 day. I know it's not a true rail rod but I would like to have this capability for use with flat falls dropper loop yellows. Is there any new techniques for building rail rod foregrips? I was looking at rail dawg but it seems no longer available. Has anyone used rubberized cork grips? Do they get slick? Or maybe using proper O.D. radiator hose with foam inside? Is cold shirk a good alternative over edpm? Thank you for your help!