Whats saberwings alt guild for our sith toons?

I've been leveling him up and was just wondering who should I contact to get an invite to our sith alt guild?

Everyone in Sabercult (the alt guild) can invite fellow sabers to join. Best bet is probably to log on to the Republic side at a populated time (in the evening) and see who's on - people are generally pretty good about switching to an Imp alt for invites.