I've read several threads about the need to split records with non elites to snag a EUA. Here's my question. Mrs F & I are booked in the same PNR SAT-IAH-BOS on Thursday. We are both Platinums. In theory, we should both upgrade if there are 2 seats when EUA runs. My question is has this ever worked for anyone?

Seems like we should have at least EUAed on the SAT-IAH hop with F showing Capacity: 16 Booked: 6 Checked In: 0 and it being a relatively open flight (only 3 exit row seats booked and 2 are us). Perhaps EUA is snagged on a bad record or they historicly see a lot of last minute Y's on these sheap full Y short hauls. We are close to 100% EUA alone SAT-IAH when not on a 735.