Hallo Dean,
Thank You very much for Your realy important and quick answer to my question, which pleased me a lot. I would try to get the above mentioned book by Mr. Vorisek, by the way his name seems to be of a Czech origin and means a Nut (e.g. Hazelnut) in our language.
Unfortunately I am not able to help You, but the SW grips are quite matching from practical point of view. I wish You will be successful. Good luck, Jan.