Plane iron camber?

[Bob Jones]

Simple explanation - if you choose to use camber, then camber about the same amount as the thickness of the shaving you expect to take. That way you use the whole width of the iron and don't leave deep plane tracks.

I camber all my bench plane irons except my 8 for the same purpose the Bob Glen mentioned.

[Mike Holbrook]

I have a German friend who's less than perfect command of the English language occasionally actually clarifies. He was fond of saying "never so much more than you need". I use the expression frequently with clients who want to know exactly how much...