That 2.24% gap compounds enormously over a bonus clearing session. Always read the paytable before playing - it's the grid of payouts in the corner of the video poker screen. If you see anything less than 9 for Full House and 6 for Flush on JoB, find a different game. You're paying a lottery premium (the difference between 88% base and the effective RTP including jackpot) without that premium counting...