More of intellectual curiosity than anything else. I'm taking the family with me on a domestic trip later this year (IAD-MCO). I'm going to burn some RPUs on it. Yes, I know there are better uses but I won't have any this year and happy wife equals, well, you get it. So, with both segments being wait listed, what's the best way to ensure clearance? Do I apply the 4 RPUs I have to one of the flights to get on the wait list? Assumedly it would only clear the whole party if one seat popped up available? Do I apply none of them and check every day? Should I start splitting PNRs or wait? Again, mostly intellectually curious.