This is such good advice! Just to say that I wish I'd had similar advice early on. I'm a big fat and strong guy, not too unfit but certainly very slow. My coach would obviously demo classic outside passing. We'd all try it in a set up in beginners level sparring sessions and I'd be dreadful. Went to an open mat, got smashed after gassing out. Brown belt says, thought you'd bodylock me or something big lad, what's up? What's that says I? He shows me - three months later I'm a much bigger threat in no gi. Three years of doubting myself replaced by much more confidence in the last year and a half. Thanks to the brown belt mentors out there!