I recently defected from SE to DE and am in love with a Gillette Tech I purchased. In researching the date codes I found that the alphabet repeats itself on the date code chart. How do I know if my Z1 Tech was made in 1954 or 1979?
My daily set up is this Tech loaded with Super Iridiums, Real Shaving Co. sensitive skin Shave2 Cream applied with a brush, and old spice. Usually a 3 pass shave works best for me.