First of all, its not a new discovery but still awes me that not all my tobaccos smoke well in my briar pipe, some smoke fine in one but not so good in another, but all my tobaccos smoke great in any cob I put it in. Its just great. But for my real point now, I was looking at my cobs sitting on there shelf and noticed that one looks darker than I remember it being when I got it. Its a legend cob and unlike my other 2 legends, that are a light yellow color, this one is a good bit darker.Im not complaining as I like the look of it, but is it just my mind playing tricks or do cobs darken and color like meerschum. I wipe them all with a moist cloth to remove dirt from time to time so I dont think its just dirt left from my grubby hands. If they do color like meerschum then I think Ill be smoking them a little more often.