Jewel, At least in this country, such wavers have no true legal force. As past commodore of a sailing club for "PWDs" we are told to get such a waver for everyone who sails with us, but in the same breath that in a case of real injury and legal action the waver is of no use.
One truly wonders both about the store which would demand a useless waver and sell an obviously dangerous power hoe and the manufacturer who would make such a device. Fowle's first rule of capitalism, It doesn't matter if it works, it only matters if they can sell it. Keep sawin them chains <GRIN> Tom