He's right, SFO seem to be really bad at this. Luckily we got our cases on the same flight however our upper bags ddin't appear for 25 minutes after the carousel started dumping all the bags on to it. There must have been over 100 economy bags before ours. Fortunately we had no commitments afterwards but a lot of the upper pax were getting very upset.
Perhaps we are going to have to go the american way and try to take on as much carry-on as possible to avoid this in the future????