Joe, Welcome back!! I'm glad you got relief, but that sounds nasty what the doctor had to do. I only have one bulging disc, but it is pressing on the sciatic nerve. The doctor hopes a steroid shot will cause the disc to not bulge as much and get off that nerve. We will see.
As to the layout, I think the vinyl sand mats looks great covering the foam risers. So far, so good I would say!