I love this collection. I had the whole collection once, I forget who sent it me q2mdm1-8 and ztn (I think). Great jumps, forwards, backwards, whatever.
OpenGL really put some effort into making it a good recam. Nice with the explaination of the jumps (what kind and difficulty), at least for those of us who learned several of those jumps by watching the demo. And still impressed by the weaponjumps.