Being a Schick injector user and a bit of a razor collector I bought this one a couple of yrs ago and it is the most aggressive of all the E type injectors and is one of the most rarest of the E series. When I bought this it was at a antique store in Central Alberta Canada and it was just fluke luck I bought it with also a E2 butterscotch one and was thinking I will have to try Schick razors for the first time. The person who owned it prior used it a lot because of some wear on the top cap and when I cleaned and used it for the first time with a new blade it let me know it could cut whiskers with a few nicks and wipers. I went over to the butter scotch E2 on the next shave and it was a lot smoother. The E5 after careful examining with my microscopes it could of been designed with the top cap back to far and allowing the blade to lift a few thousands of a inch off the seat so creating even more gap and also a little more blade exposure. This is one of my most aggressive razors in my collection and it's a Schick which does not make real aggressive razors. The E5 was not made in large #'s so this becomes my rarest Schick and thought maybe people would like to see a Canadian rare E5 black handle injector. The E5 does not have the Side wings on the spring and the E4 also does not have the side wings on the spring. Have some great shaves!