I've upgraded from a Hero3 Black to a Hero5. It's been a long overdue upgrade, but glad I waited. Anyway, I tried my Backscatter Flip 3.1 on the new Supersuit. It was a close fit, but not close enough. I came up with a fairly simple solution. File down the raised area shown in the diagram with the arrow, allowing the two surfaces to meet along their length. Replace the bolt and tighten. It now fits snugly, there's no way it's coming off! You may need a slightly longer bolt than the stock version. I can't remember as I replaced mine a long time ago.

