I'm writing a colored pencil tutorial for a magazine in which I'm using Stonehenge paper. My question is....is there a right or wrong side to the paper? Its hard to tell a difference on the white paper but the colored paper has a definite slicker darker side.... and second there's a debate in the pencil world over whether or not the pad paper is different from the loose paper.....I'd love to pass this info along in my article. Thanks