Cool feature, I really like it.
@DB9, I know how you feel. I'm a 14 as well. The lack of a half size kind of puts me between clubs, so to speak. My XPS-1s are 13s, DNAs 14s, Professional spikeless also 14s. They all fit well, but the DNAs are probably a shade on the large size. I bought the 14s for the DNA because the 13s felt a little small and I couldn't find any in a store, had to order them online.
For what it's worth, on a Brannock device, I'm firmly between 13 and 14.