I had the same ? as Mobuck about live weight/wrapped meat expectations for a bison. A little research produced this site.
http://www.google.com/url?sa=t&rct=j...59568121,d.cWc
According to these experts (and it tracks closely to what I know about cattle) a 1000-1100 live weight animal should produce close to 600 lbs trimmed, cut, wrapped meat.
I am going to contact the High Adventure folks and may be scheduling a hunt there myself. Mayor Al, maybe we'll run into each othere.