Burnt up all of my SWU's flying to and from Oz this year and every single request cleared, with only the last one, from C to F, going to the gate.
On CR1's, I've sponsored 3 so far and used 1 and only one segment has not cleared. Got another trip in a couple weeks and cleared the return at booking with a CR1 and let the outbound go to the window with 500's, since it's a red-eye and there's also a CR7 segment involved. Shouldn't be a problem.
Very satisfied with the upgrade experience this year...
Pat