lol @ armchairs comment! I know what you mean.
I think it's the best way to find that balance, sitting deep in the seat. Really, you're not sitting on a horse like you would in a chair, but more straight. As if standing with a horse beneath you. If that makes any sense. <img src="/images/graemlins/smile.gif" alt="" />
I want to get involved with one of those groups. There's one around 60 miles from my house; one of these days I'm definitely going to volunteer there.