I see a lot of people mention "blade chatter" in relation to DE razors. At the risk of asking a silly question, what is blade chatter exactly and how do I recognize that it is occurring? Thanks... JR
From the result of a dry face - not enough water to wet it or not enough lather to protect it. The blade will "stutter" and skip during the stroke.
Blades that aren't sharp enough skip across the whiskers and when they hit my face they cut in. I have found that the sharper blades don't do this. SE gem carbon blades chatter after 3 shaves, injector blades chatter after 4. I have had a straight chatter like that and it was fun in an "oh god oh god my face is lying in the sink" kind of way. I took it to a barbers hone and newspaper and it didn't chatter anymore.
Making sure your handle is snug. Loose handle = loose head= loose blade, causing not only chatter but rattle too. Result: the styptic pencil wont help but lots of bandages would be needed
I've only had blade chatter when using TTO razors, never on a three piece DE, SE or cart. I believe it's caused by a combination of an unsupported or poorly supported blade and steeper blade angles.