Fourth and final shave with a Gillette 7 O'Clock Yellow. A nice smooth shave again with no irritation or feedback from the alum block. The blade still feels sharp enough for a fourth use (albeit only a single pass). Its moved to the top of the ratings list (although still 6 blades to go). Gillette Silver Blue up next, I'm interested to see how they compare as they supposedly have similar levels of sharpness.