I'm 5'8" with a 30" inseam...
You will do far better ordering directly from Corbin (Gus at Hollister location). Might cost a bit more, but you get free customization to your body dimensions...
Read this!!!
All answers are contained within'...
Everything done applies to Dual Tour as well...
http://www.doofclenas.com/8-Ball/Seat.html