Specs are good, you'll like it. A 13.2 end will help with spinning and still have a good stability . I went from a 13.5 to 13.2 and really didn't notice to much. It may be easier to lift your rear but I noticed to I get more height on hops with a 13.5 end. As of now Im on a 13" end...While Im not concerned with having my super high hop height, its does make spinning tricks faster but, with the short end, you'll lose stability. In all, you'll get used to it. The geo you have listed is perfect. What frame are you interested in?
REFS-
Vital- KyMike, FEDEXdoobie, adrenalinebmx ,MaximusBikes
Bmx-forum-Tumitama, archerbiker9(2x), mrsanchezz, nguyenna, JoeyBones, fast-and-loose and many others
Also multiple sales on global-flat.com and PinkBike. Theres to many to list all. Most sales are done through texting I havent been able to keep track of who is who.