Tripling a hashrate is the easy half of the promise; the odds are the sober half. On my own node a moment ago, the party's 102 PH works out to 0.0104 percent of network hashrate. That expectation is what the eight hours actually buy: one block every 67 days, with a 1 in 201 chance inside the window. The window is worth 3,894 dollars a day with the coin at 83,401. The 3.125 BTC subsidy sets that figure; a pool only trades one lottery ticket for many smaller ones.