Jerry's Evolving Thoughts on "new-to-me" Prime Premium

The immediate concern is an immanent Tesla 3 wheel swap. The car has NO front or rear jacking points, only points on the rocker panels, and a rubber hockey puck, or this gizmo with a locator pin, is required:



I figured I was set, having that, but: there wasn't enough clearance for my floor jack, so rolling the car up onto four (3") ramps, all in one go, gives me that clearance, and all in one go.

Other'n that, I liked Jerry's straightforward design, and the ramps I'd previously made were proving prone to kick-out, so thought I'd try some ideas.