Keep him on wager share. Especially if he plays video slots and freespin type slots.
I had a large player have a large win this mnth, and now he is playing it all back, and I never missed a beat.
He wagered a lot to get the win, so I made money. His win is not my loss, so I am happy for him. And now he is playing it back and I have a supermonth.
Some affs may be gamblers at heart and enjoying the suspense of watching the stats fluctuate with winners and losers, but not me.
I like to be able to plan on my earnings.
There are a ot of slots, especially feature and free spin ones, that pay off frequently and keep the player going for along time.
These make you excellent money on wager share.