Originally Posted by
javabytes
Not sure I said anything different. If RP is a subset of RU - or if not a subset, then at least correlated - then if you can find RU, your chances of finding RP on that flight are higher than if you didn't find RU on that flight.
True, but the point is that many times you can find RU but this does not mean that RP is available. At best, it might indicate which flights will not have RP available, not the flights where there is RP.