I read somewhere that if a flat needle group is used incorrectly, then it can basically slice the skin like a blade. This obviously made me want to run a mile from them as I have a box. BUT, at some point I'd probably want to use them and should really face up and learn to use them.
Anyway, Is this true about the needle? If so what is a good and none slicey why of using them?
Anyway, Is this true about the needle? If so what is a good and none slicey why of using them?