I'll take a stab at the mopping question...WHY?...I pretty much use the KISS(keep it simple stupid) method and with this method...there is no mopping cause I lose the heat when I open the door, thus extending my cook by 20-30 minutes. Anyway, I just don't seem to have a problem with the CS on not smoking in a moist environment, but if I kept opening the door, it just might not be a moist environment.
But give it a try and let me know if I need to change my approach.