I think you'll definitely be riding the jet stream back for part of the flight, but the maps I want aren't out yet, so I'll followup tomorrow. If you are riding the jets back it probably won't be as smooth as the trip out was though.
Looks pretty good. You'll ride the jet back for part of it, but the jet has calmed down a bit, so hopefully only occasional light as you ride it back from NRT to about Canada. You'll probably break off the jet about Canada, and it should be very good on the rest way back. Enjoy and please report back!