I just noticed something amazing...my wooden comb...my most usedcomb, the one I use for detangling, snag free, seamless made of peachwood...when I bought it it was flat. I went to pick it up and it had kind of a hump to it I picked it up and noticed the hump is actually the shape of my hand from the way I usually hold it. No wonder its so comfortable to grip. I didn't know that wooden combs conformed over time to the shape of the hand that holds it. I have 6 other wooden combs ...wonder how long before they do the same thing.