I wanted to post a quick review of my ATT S-1 Slant since I have reviewed my X-1, SSRH, and the original R-Plate head from 2013. Since I used my original Atlas handle, the feel and performance are very similar to the other heads, helping to reduce variables and focus on the head performance. The S-1 is the mildest razor I have used but it still gave a good shave. It isn't the most efficient shave I've experienced, and the configuration makets it difficult to shave under my nose. The quality of the components is great, but the S-1 is my least fovorite configuration of the ATT heads I own. I have open comb SSRH plate to try next, which I expect to like since I like the closed SSRH plate.