I used my new SSRH Windsor head and base plate for the first time yesterday and was extremely impressed. It was my first DE shave after six with my ATT X1 Slant. I used a Feather blade and immediately noticed more blade feel and efficiency but zero knicks or cuts. I attribute that to a decade of using the same handle and an ATT razor for the last ten years, but I was surprised that it wasn't as aggressive as I expected. I was careful, and my technique with the razor is quite good. Once this blade is done, I will try out my S1 and S2 slant heads. I know there are a lot of great razors out there, but after using an ATT razor for so long, I chose to try their variations rather than delve into a new brand, and I am happy with the results. I have many options with interchangeable heads and handles and I love the shave I get with this setup!