So this guy wins all this btc with just flat betting?  He bets either <33.0 or >66.99.  It seems like he figures out which one, high or low, will go into positive variance and switches.  That is why his luck % of 102.98 after 6,179 rolls is so high.  At least that is the way I'm seeing it.  It seems to me that is the only way a flat bettor can win.