Reedsburg runs a Split back veer option and a lot of times lines up in Flexbone setup. I believe they made the change over to this formation last year and have been having great success with it leading into the game against WISCO this Saturday.
i saw reedsburg on saturday against madison edgewood. the reason i did not include them in the teams i had found was because i never once saw them line up in a true split back veer formation. a true split back veer formation is 2 running backs lining up equal distances from the line right behind each of the guards usually about 4 yards with the quarterback under center. reedsburg had one fullback behind the center and one wing on each end of the line with the quarterback under center as their base which you are correct would be a flex bone formation(also can be wing-t if the guards and tackles and centers pull and more motion before the play is done). the flex bone is a different kind of option than the split back veer, both in many cases are triple option, but definately are not the same.