I worked for Johnny Davis back in the 80’s. Ride was called High Roller. Zipper was similar but not as good. Did shows from Melbourne to North QLD. Moomba festival on the Yarra was probably biggest show. His brother had a Hurricane ride. Original ride came from Manly pier and trailerised by ferrari, so it could be packed away and setup. Some fond memories, his 1418 mercedes prime mover to pull the ride. Back then he also had mirror maze and clown truck.