I have all 3, an 18, 14, 12 1/2. The 18 has ghost rings, the 14 has a bead, and the 12 1/2 is a dlask with some kind of blade. I hardly ever use the short one, and for slugs I use the 18. the 14 is my favorite though, it just feels right. In the bush you also have to check the hunting regs, a number of provinces (Ontario for one) are limited to 2+1, so it has to be plugged. The plug can come out at the range.