I probably could have went with a 27.5 or 27 but it's not too big of a deal. For the Recon, you have to go with a smaller size than what you use for the MK VI. My recon is a good size though and my MK VI is good as it is. It fits really well.
The reason I went with 26.5 is because when I originally did the scaling, it was with Robo's method. When I put in my height I got a 26.5 at the time and went with that. Now I could probably use a little extra room but it wouldn't be much more than 5mm added. It still fits though ^_^
EDIT: It's set up to be scaled for someone who is about 5'11.5". I just checked.