I've switched over to using Zing it and dynaglide for the ridgelines on my DIYs. I have two adjustable structural ridgelines that need new homes. They are constructed from black 7/64 Amsteel. Adjustable from 90" to 120", and fixed eye on one end.
I never actually ended up using these ridgelines, just installed them and took them off again since I almost exclusively use my Blackbird in summer. Too many bugs.