Believe the Captain was flying and perceived the aircraft was not going to fly so they aborted. Apparently both he and the FO were sent to the sims and tried to re-enact the series of events with a check airman. I guess all three of them red-screened it 95% of the 50+ times they attempted the takeoff and didn't abort. Just what I heard through the grapevine, so take it for what it's worth......