I agree that the threshold should be lifted given that it was set in 1977 and not raised once during the past 46 years. The Las Vegas Review Journal had an article in May stating that: "The IRS Advisory Council, however, has recommended that the W2G threshold increase to $5,800. IRS Commissioner Danny Werfel appeared to back such a move during a recent appearance in Congress."
You did say you began with 500 dollars at 20 dollars per spin. Have you done his before and if you have, how did those play out at 20 dollars per spin?
I usually put that amount in and if it's not hitting I change machines. It can go quickly. I don't usually post those sessions because people don't want to see that.