Out of interest I checked whether there were any Gs for my VS20 from SFO tomorrow and what should I find but a single G! was in PE to begin with but decided to take the plunge as it's a 747 (wary of 330s) and I could do with a decent kip on the way home. Was surprised to see one as I know West Coast Gs are few and far between!
Well done!
Flightstats is showing tomorrow's VS20 is wide open in all cabins so hopefully shouldn't be too busy.
On flights from the US back to the UK, if there are still unsold seats in UC it's almost always possible to upgrade with miles at the airport - useful to know if those elusive Gs never materialise.