Thanks but didn't answer my question. Any idea why they're "clearly different"? Is their website wrong? Actually different paper (can you tell?) Seems weird if it's the same paper, just a different color, (which could just be a marketing scheme)...that you'd see such a difference. Was hoping, since you did the study, you might know? (Especially if not a weight difference). I don't really want to start testing different papers... just came here to see which one to get, and ran across this. Thought you might know already... if not, no biggie.