This from WikiShave regarding the Gillette toggle:
Notes of Interest: Limited production in 1957-1958, with national distribution in 1960. Prototypes have serial numbers rather than date codes. Variations included gold- and nickel-plate. While the head of the razor looks like that of the Gillette Fat Boy, the gap adjustment (common red dot version) works differently. In the Fat Boy turning the adjustment knob lifts or lowers a bar underneath the blade changing the angle of the blade in relation to a fixed gap between the razor head doors and a fixed safety bar. In the toggle the razor blade maintains a fixed angle and turning the adjustment knob raises or lowers the safety bar.
Question: Do the Slims and SuperAdjustables work the same as the FatBoy or more like Merkurs with the blade angle emaining constant?
Notes of Interest: Limited production in 1957-1958, with national distribution in 1960. Prototypes have serial numbers rather than date codes. Variations included gold- and nickel-plate. While the head of the razor looks like that of the Gillette Fat Boy, the gap adjustment (common red dot version) works differently. In the Fat Boy turning the adjustment knob lifts or lowers a bar underneath the blade changing the angle of the blade in relation to a fixed gap between the razor head doors and a fixed safety bar. In the toggle the razor blade maintains a fixed angle and turning the adjustment knob raises or lowers the safety bar.
Question: Do the Slims and SuperAdjustables work the same as the FatBoy or more like Merkurs with the blade angle emaining constant?