******1. I have sketching pencils which have the same skin making it cumbersome for me to check everytime the grade of the pencil before using it.
When one is sketching and espcially if one is doing a fast sketch there isn't time to check each pencil to land at the correct grade of pencil. Most pencils loose their grade markings as it is, hence there needs to be a system that helps me to intuitively recognize the grade of pencil I need from the lot. Also if the pencils are always placed at the same place in the pencil box it might help.