Besides being an interesting word to use in a Scrabble game or an interesting name for your pet gerbil, "jimps" do serve a purpose. A bit of traction for wet hands on an otherwise smooth and slippery piece of metal. A few questions:
1. When did jimps become common on SRs?
2. If they are so helpful, then why don't all SRs have jimps?
3. I can understand the purpose of jimps on the lower (edge) side of the tang/shank...but what is the purpose of jimps on the upper (spine) side of the tang/shank...sometimes only on the upper side of the tang?