I also find the post 77 Superadjustables to be more comfortable in the shave. Slims seem a little harsh compared to the Black Beauty. Just really great shaves from the Supers. I seem to pick one of the Supers up more often than my new Rex Ambassador, which also gives great shaves, but with a little more blade feel.A post-77 Superadjustable. The “9” on a Slim or Fatboy is a “7” on the SA. It has two more aggressive settings. It is, IMHO, the best shaver of all Gillettes.