I've had this IMP Meer a month now. I decided to smoke most and somedays, all, of my Virginia blend smoking in this Meer to see how much it would color in a month. Averaged 3 bowls per day in it. I will continue to smoke this Meer most days, it is a very good smoking pipe. I'm a rank Meer novice but I think it the coloring process has progressed rather nicely. I'm not even considering any of the tricks/techniques to accelerate the coloring process. I'm going to do it the old fashioned way, just smoke it. Here are some photos.