So, for the past few days i have been followin this theory and trying it out myself. When ever there is 1 (ONE) green premium symbol, that is NOT connected in to other green premium symbols on the spot marked in the picture, the incision wil be wild. I tried this myself only to miss the wild incision 2 times in a row with 1 green premium symbol on the spot, but i still see something in this theory. Maybe i will have to go get my tinfoil hat and call it a day, but try it out for youself and come back with the results.
Proof #1 Wild-viilto - Twitch
Proof #2: Uusiks - Twitch
Proof #3: 2 vihreet - Twitch