I don't think the no wager free spins welcome offer is so open to abuse, throwing down two numbers quickly just consider you have to deposit and wager $500 ( with a RTP quite favorable for the house compared to the average of their competitors) to obtain $10 worth of free spins. Am curious to see how many of us will be in profit after trying this.
What I'm really interested in knowing instead is whether the slots are provably fair or not as I think this might be the real deal for the success of your business.