A small cohort of Forums members, including me, wipe out bowls after every smoke, retaining a good carbon layer but not building cake. This maintains bowls in the round into the third and forth decade. For resto men, reamers have their place. But I have never owned a reamer and sort of regard them as not so much a smoker's friend. I understand most pipe smokers value reamers and take the time to learn to use them, cautiously and carefully on the pipes they smoke, but it appears that they are far too much fun for the beginner to use, and do a lot of damage to many pipes. The photo with this post being exhibit A. It would put me on a bad mood to regularly smoke pipes so gleefully abused. Let's not look at the scorching on some of my rims, which seems to me just affectionate wear.