I'm not sure why but I seem to have a problem with small Dublins. I have 2 in my collection and while I like the space they always seem to smoke hot on the last half of the bowl. I don't have this problem with my smaller Apples, Eggs, Cuttys or Billiards. Maybe its how I smoke matched with the narrowing of the chamber at the bottom half of the bowl? Anyone else have this issue or find problems between one shape to the next?