Prior to those wins, I considered a couple of quid to be a good Prize Machine win! That's why I figured that slot was worth a punt. My eyes nearly fell out of my head as the numbers kept climbing 
Quick question about wagering the Bet365 bonus. Do you overlay it so that, if the bet wins at the bookie, you don't lose any of it? I'm sure Oddsmonkey recommend that for rollover bonuses?
Also, I take it you calculate it as a free bet SNR? Or do you? 