BTW - with only one R seat on the flight for Sat evening - I cleared.
Was 20/24 sold, with 1 R seat. Now 21/24 since I cleared. I suspect I was the only Plat - since row 7 on 753 and all exit rows were vacant even though flight is almost completely full.
So tonight at T-48 hours - the 1 R seat cleared. Last night at T-96 - the 1 R seat did not clear. No way to predict?