Question about the shank. What's the difference between screw-in and push in shank? Which one smokes better? What are the pros and cons for those two types? Can screw-in shank be replaced to push in shank? I just hate the look of screw-in because of that metal. Also, I don't want my smoke to touch any kind of metal at all. Just wood and whatever material the stem is made out of. I guess I am just picky.