Yes, I used the zip ties in a couple of spots.
I may try laying Fastrack on it to test using it for O Gauge. Would need to find a matching curve. I think O and Standard Gauge would require a base on the hangers. Although, Gargraves flex could work if you put Electrical tape on the hangers for insulation. I did this in a few spots where the hanger was at an uninsulated track joint.
George