re shorting-This one of the posts I received from people to educate me re this:

"on the OTC .. i'm *highly suspect* of the no.s reported
twice monthly .. imo those are garbage .. the daily reg
sho reported by finra at 5:30 pm does indeed cover short vol
and yep some are indeed covered over X no. of days .. what
is *missed* imo by many is what is bypassed (not shown) and
also what is *reset* or never covered .. just swapped back
and forth between entities ~ what is bypassed is done via
ex clearing and other means .. patrick byrne wrote a great
piece on it for the NY TIMES back in april 2009