You may already know this, but I learned it the hard way a couple of weeks ago: a significant difference internationally is that you cannot "convert" your non-rev listing to a JS listing ("flow forward"). Once you're within 75 minutes of push, you're stuck with whatever listing you have (or don't have). For reasons that elude me, the system cannot take a non-rev listing and put you in the JS; and we're not allowed to make two listings (i.e., one non-rev & another JS "just in case"). You can still "flow back" from the JS if there are open seats, but if you're trying to sit with your wife, that may not work out as well....