My recent biggest cashout with RTG casino was $1250 at Grande Vegas casino. It came from a $35 deposit with 100% bonus. I felt like most games at Grande Vegas are loose compared to its sister casinos. The new game, Coat of Arms, was the game that won me big ($1800), I had 5 white knights came out which won me an initial $200 and 8 re-free spins.
Each re-free spin has all 5 white knights and $200 winning, so the total winning amount was $1800 when all free spins were completed. I had about 1900 left in wagering requirement and my balance was at $1830. I thought I beat the playthru easily, I might lose just $300 max as I guessed, but I was wrong, the other slots are not hitting after the big win I had on Coat of Arms.
I eventually cashed out only $1250 with Grande Vegas.