OK, here's what I said for another game that needed a sub:
"Um, I mentioned (in the 'List of Games...' sticky) how I was wanting to "dip my toe into the pool" as it were, regarding 'at large' MP play. If you think this would be a good opportunity to get my feet wet, as it were, I'd happily join/sub in.
I've never done it before though, mind you. And I would need some 'walk-through' about how to get it going. But I'd be willing to give it a go, if you really needed someone. It would help me get my 'foot in the door' too, regarding 'international MP play' as it were, which I would really appreciate.
So, I'll gladly sub-in, if someone can walk me through the necessary steps regarding joining 'at large' MP games.
Thanks."
I guess I'd join whichever game would have me. If I had my druthers, I suppose I'd join whichever game gave me the most "noob gentle treatment", whatever that was
I'd probably join both games though, if the feeling was right
I likely need the "enhanced" MP practice...