longs consider the finra short volume to be most a
Post# of 9142
There's also tape vs non-tape (non-accounted for shares in many totals) etc.
there are charts of the daily tape short volume as I think you are aware which i just looked at
http://r.search.yahoo.com/_ylt=A0LEVi2FYd1Xlt...HdOugUHPM-

