You have received a lot of good advice here. I always smoke filterless pipes and uncoated bowls. I fill the bowl and smoke it down to the dottle. Always run a pipe cleaner through after every smoke and allow the pipe to rest. Rotating pipes is best. Rotate blends, too. That will keep your taste buds alive and you are less likely to tire of a blend if you rotate it with other favorites. Smoke slowly. Relighting is better than smoking too hot. If the bowl is uncomfortable to hold, you are smoking it too hot (puffing too much or too hard). Take care to properly pack your pipe. Not too loose and not too tight.