It did occasionally at first, if the subfloor is extra dry and slick. But, we ran some short #10 screws through the plywood bottom to stop that. Right now, our biggest problem is stopping the reel after it gets going on long pulls. Once in a while, someone has to re-roll the spool some to keep it from binding between plywood pieces after a long pull.
We also stack 250' rolls on them for multiple homerun pulls to kitchens, etc.
The lazy susan races were about $20 for 3, I think from a homeowner store like Lowes or Home Depot, and the plywood was scrap.
Right after we built the first ones, I got a set of those "ad cards" from one of the contractor mags that had the commercially made metal wire caddys in it. Kinda like the idea of the "tub edge". One day we'll re-work ours to make them round, and mount a rim around it as well.
""NM dispensers are (were?) commercially available. I haven't seen one recently, but they are orange plastic with a flat round bottom and swivel.""
But, Redsy, what fun is that?