[quote=@Stitches]
I wouldn't have the GM wait on me or my friend at all. If the IC's ready, post it; we'll catch up and find a way to join in.
[/quote]

There's gonna be a weekish-long grace period in the starting town before the plot properly kicks in, even after the IC goes up, and characters don't actually need to be present for that initial bit of interaction, so you've got plenty of time to throw around character ideas and get sheets done before things really get started, and you won't be holding anything up or anything, for sure.