Wow, I see the problem. I just checked the websites for those bindings and they really don't give you much to work with. The Eris bindins at least mention
park riding, so that may be all you have to work with. The Unions seem to be more about "ooh, look at the pretty colors".
Yeah, that's me, Tracer Bullet. I've got eight slugs in me. One's lead,
the rest bourbon. The drink packs a wallop, and I pack a revolver. I'm
a private eye.