I hope everyone is having good luck booking their status renewals!
I've just completed the bookings that I had planned for BF. A total of 12 segments, 18026 status miles expected. So this should cover me for another year of Gold, plus, a whole bunch of travel that I needed to do anyway.
Total cost is perhaps a bit higher than absolutely needed if you were to book a specific mileage run (about 6 cents per status mile), however this travel needed to be done anyway - and all of the international segments are either directly booked in business, or, upgraded to business - I was able to apply all four coupons straight away (and got confirmed straight away).