I don’t know how I came across this page but I felt the urge to registered just to reply to the naivety of your post.
What you see on the screen means NOTHING. The second you hit the spin button the outcome has already been determined using computer algorithms. The visuals you see on the screen are exactly that, visuals, and will appear to coincide with What the algorithm has determined
A slot machine is just like a roulette wheel thr size of the M25. The second you hit spin the ball has already spun and landed in one of the billions of numbers, the graphics are just there to jazz things up.
The ‘set ups’ are irrelevant, the placement of the symbols mean nothing. Sorry to burst your bubble!