Very interesting Twang but I am having difficulty in understanding how moisture would wick out through thick walls of meerschaum in such a short time, let alone how one would detect it.
Think of it this way, if one were to fill up a pipe bowl, be it meer or briar, with water then put an airtight seal on the shank end and lid on the bowl top, by your reckoning that water would weep out of the bowl sides. This I very much doubt would occur even if left alone for many months. Yes of course meer does have pores but on a microscopic scale hence it taking so very long to 'colour' a meer pipe.
Now I am not doubting that you have somehow cured the gurgle issue but I cannot see how by merely sanding the bowl that would have cured it.
At some point I will make a slide of a thin section of meer and photograph it at various magnifications through my microscope then you will see how minute those pores really are.
Enjoy the poker, it's a lovely shape. I have a huge block meer billiard that I don't care for too much which I keep meaning to rusticate hoping that might improve its looks...one of these days :?
Regards,
Jay.