I was just about to try again with help from Shorty and Dan Gardner, but the help was too fast.
You will notice that there are to different versions of the Hydro-plane tool. I can't remember which came first though.
Tony posted a couple pictures a while ago, and I am just now getting around to responding with some similar tool pictures.
The Hydrocrevice tool works like a PMF internal jet tool. The other Hydro tools work similar the Hydrokinetic upholstery tool. but are wider. The Ultraplane tool has the wheel and is larger than the Hydroplane tool. I have used it in the past to clean a small delicate rug.
I don't know how well they sold, but figured few had seen these tools designed by Ron Toney.