John, that's just wrong!!!! I did it for years and really sucked at it even standing. I think my flying skills were the reason that combat kits came two in a box!! How you can do it sitting in that chair is beyond anything I can even think about being able to do.
I did get a little better at it when I got older but I still left stench in the circle!!!

In a circle with a string?? Yep, that's how it's done!!