Limits of bonus timing and session outcomes
Set your session budget before the first spin, because the bonus round comes at random and nobody can time it. A long dry run does not make the next spin more likely to trigger it. Each spin stands alone, so the result of one session stays random, whatever the 96.50 RTP shows over a very large number of spins.
Open the game rules to see which RTP version Richard Casino runs on this lobby entry. Only the game rules name that version, so check them before you compare one session with another, since two versions of the same slot can pay back differently.
Treat the maximum win of x15,000 your bet as a ceiling, not as a target. It is reached very rarely, so size your stake to the session length you want rather than to that figure. Plan the bankroll for many quiet spins, since a big win is never something the lobby can forecast.