Know the ceiling before you size your bet
Set a budget you can keep to before the first spin, because nobody can tell in advance how often the Free Spins round will come. The result of one session is random, and the 97.25% RTP only describes an average over a very large number of rounds, not the night you are playing. Two players with the same bet can finish with very different results.
Open the game rules before you bet, because they are the only place that states which RTP version runs on this site. This page lists 97.25% for Wild Card Gang, so check that the rules show the same figure. Then set your bet and start the first spin.
Treat the maximum win as a ceiling, not a target, because very few rounds ever reach it. Its size grows with the bet, but a higher stake also means each losing spin costs more. Nobody can say in advance whether a session will come near that ceiling.