I went 5 for 6 this past week:
On 4/24, DCA-LAX-LAS, I cleared the LAX-LAS segment at the 5 day window, and was able to use an RUC on the "inaugural" Delta 1 DCA-LAX 757; despite putting in for it 2 weeks in advance, I was
#2 for 1 seat until 90 minutes before departure when 2 D1 cancellations occurred; I cleared 40 minutes before departure.
On 4/25, LAS-SJC, EMB-170 with 9 F seats, I cleared 3 days in advance.
On 4/26, SJC-LAS, EMB-175 with 12 F seats, I cleared at the window.
On 4/27, LAS-LAX-DCA, 737-800 with 16 F seats, I was
#8 for 0 F seats. This was the first leg of DL7, LAS-LAX-HND with a change of equipment at LAX. At least half of the pax on this trip appeared to be Japanese heading home from the National Association of Broadcasters convention. I think a number of those ahead of me on the upgrade list had J class tickets on the TPAC portion of this trip.
I did better on the LAX-DCA D1 nonstop, as my RUC cleared; I got the good news 30 minutes before departure (I was
#2 for 3 empties).