I only have one slant, the RR German 37 or whatever it's called. Zamak head. An overall GREAT shaving experience, and quite different from any other DE I own.
My only problem with it is that it is kinda boring to use.
One BIG plus: I don't think I have found a blade that doesn't work REALLY well in it. I'm not sure if that is the case with all Slant types, but it wouldn't surprise me.
I'd like to take an old Gillette and twist it to see what would happen. I'll bet it's out of my skill set, but I do believe friend @Tanuki has one that he has used, and enjoys!
I’m sure tons and tons of people in here greatly enjoy and get amazing shaves with their slants, I’m just not one of them as I was unable to figure out their trick… Maybe if I’d tried them a bit longer? Idk…
I read about the slant’s advantages all the time, smooth and efficient shaves, work well with most blades, can squeeze more shaves out of the same blade, zero irritation… Maybe I’ll try to borrow back the FOCS and take it for another spin, who knows…
Anyways, I’m glad you are enjoying your RR 37 and having great shaves with it!
Take care and have a great one!