I'm 3 for 3 this year using RUC for SFO-DTW legs which I thought would be a tough get. The first 2 cleared at least 3 weeks from departure, the 3rd about 4 days out. Tried to appy the last one for JFK-SFO but 4 days out it looked like Delta One would sell out so I paid for the upgrade. Looks like I have to (try to) burn that 4th one on a CRJ one-hour flight from DTW-TVC as all my other travel is booked in first between now and expiration..