Does someone know what the next step up in sharpness is to Chrystal platinum? Thank you for your info.
Try a Feather Stainless. I like the Crystal Platinums as well but I think the Feathers are a little sharper. They can be purchased at most of the shaving suppliers.
There is also KAI blades, not quite as sharp as a feather, but close. I enjoy Perma-Sharp Super and Gillette Silver Blue blades.
I put a Feather in my Ball End Tech last night for my head shave. I had to keep checking to make sure I put the blade in because it was smooth! I think that means pretty sharp. Gillette Silver Blues also seem pretty sharp to me.
Rapiras (Swedish Super Steel, or LUX) would be a step up in sharpness to the Crystals, and similarly smooth.
Gillette 7 O'clock Super Platinum, either in the black wrapper or blue wrapper. They are hella sharp and quite smooth, and last darned near forever. I get about 14 shaves out of each blade.
The Crystals (or Personna Reds) are not know to be a sharp blade at all (very smooth but not super sharp) so you could choose many blades like the Astra SP or Personna Lab blades that would be a good step up in sharpness. If you already like the Crystals you'll probably enjoy the Personna Labs because they have a similar feel while being sharper. I find I prefer the very sharp blades myself and use the following: Feather Gillette 7 O'clock Yellow PolSilver Super Iridium Gillette 7 O'clock Black Gillette Silver Blue Good luck, David