We have made a lot of changes to the withdraw system about a month ago.
1) Users can withdraw normally
2) Users can lock their withdraw
3) Users can permanently lock their withdraw.
So you can't play it a way.
Also have increased hot wallet, so withdraws have been instant since. We have been checking it on a regular basis to ensure quick times.
With large withdraws and/or if it runs out, the user can lock the withdraw.
All the 2 listed above is good but the number 3 which a user will permanently lock their withdrawal and not account is somehow odd for me. A user can decide to lock his funds for future use and not to permanently lock them then who will use them again. The trust system goes any casino is the withdrawal system and if the system is smooth and normal then the casino is already a reputable one. And that means your casino is on the good line with gamblers.
A bit more info on 3), this implies when a user withdraws coins to an address, by locking, the coins go to the address they inputted without being spendable or playable.
Option 2), is setting it to manual withdraw, but its possible to cancel and play games.
Option 1) is like before, and withdraws instantly.