I believe one of the first op-ups I ever received was on HNL-SEA. I had an exit row seat for the red-eye flight and towards the end of boarding, another person came on and was also assigned to the same seat. The GA took both of our BPs and then gave me an op-up to the last F seat available since I was plat saying that my status trumped whatever she had. I enjoyed it because this was the last flight on my trip back from Asia (SIN-NRT-HNL-SEA), and I needed the rest because I was planning on going right into work as soon as I landed.