Good to hear, my clan uses warband as well to train, mainly because we are a native scrim clan though. We've played PW for years, and feel like Feudal will be more like a lawless version of PW most of the time, so I don't see formations playing much of a role in woodland skirmishes and the like. In sieges and organized battles this will be different of course.
I look forward to working with you guys in the future, maybe joint security should the necessity arise. I see no reason why the two civilized guilds in the game should be at odds over much.
I respect what I see from the Silver Run Republic, and hope that we can come to a mutual respect in an understanding that both our guilds will have different cultures that are distinct, but have much in common, cheers
Edit: We also use Wurm to train our news guys, get them to think like sandboxers. Most of our vets are also veterans of Dawntide, in which we ran the largest, and most prosperous guild in the game. So we're sandbox vets/freaks to say the least.