Number 1, you definitely need to find a machine that isn't already showing spin 10 of 10. If less than 10, you will want to see a decent amount of spots already circled (those will be wild on spin 10). There could also be a scarab or two actually still showing, that would mean that the person got those on their last spin played and they will also become circled like the others on the next spin. You will want to check all the bet levels and if a multi denom machine, all denominations. I think I kind of pissed off two women playing Scarab at Linq when I walked up to the machine between them and after checking, saw a good screen at the $1.50 level. I didn't even sit down, just put a $10 in and played 3 spins and hit for a quick $80, looked at them, shrugged with a smirk on my face and cashed out, lol.
Here is a little article explaining advantage on Scarab.
https://www.knowyourslots.com/scarab/
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