I believe that I can maintain above 45% without the slush pit.


From the comments here, the extra wetness may be not worth the problems that it may cause. I certainly can keep the range between 45-60%. Durring a shed (my experience with fluffy is 2-3 days) I can jack up the humidity with a wet sponge on a ceramic tile (that is what I did last shed).

Thanks all for the good discussion.