The busk was mailed out on Friday (the email tells me) so I expect it soon. The seams that will contain the busk are 2 of the 8 remaining, the seams that join the Center Front to the rest of the corset are 4 of the remaining 8 and the last 2 are the two that join the Center Back of one side to the rest - which I plan to do tonight.
This is going rather faster than I exected. AND I am getting sewing done while also raiding in WoW. Very interesting.