I'll make my 50th night at MR properties in the last 12 months on February 7th so I should be elevated from Silver to Gold. I've got several Mariott bookings to make shortly thereafter and would like to make them after the system recognizes me as a Gold. In reading the FT threads on MR's rolling tier it seems they "sweep" about every 2 weeks for status bump ups - probably on weekends. Does anybody have an idea as to the upcoming sweep dates?