Double 16 is most professional players favourite close out double because darts players tend to "line up" darts. Basically, they have a much better chance of hi

Double 16 is most professional players favourite close out double because darts players tend to "line up" darts. Basically, they have a much better chance of hitting it on the second go if the first one was closer. Double 16 is most forgiving because double 8 is above it. If they hit single 16 they can go to double 8 above it and if they hit double 8 above it, they go to double 8 again (requiring minimal or no correction) There are some players who like double tops (20) but for the most part double 16 is the conventionally wise way to check out.