Over night difficulty raised many times, reward dropped too. On https://sumo.fairpool.xyz in the middle of the night (2am onwards) huge miners showed up. While total hashrate was around 15-19M, those who joined had 5Mh combined. The next morning I can't get 5 sumo of each Vega/day anymore. Now its literally 1 sumo/1kh/day or even slightly less. Good news for Sumo, bad news for small miners (like myself with 5 Vegas)