556 free spins at max bet ($2.25). I had a sneaky feeling this would be hand pay since I've seen other videos online with as many spins at max bet or lower that resulted in big bonus jackpots. Mine was at max bet with a number of spin re-triggers (172 initial + 48 + 304 + 8 + 16 + 8). I've captured all of these in this edited video. Thanks for watching!