Is very strange that many things you do have been in my mind, or I did before.
Without knowing the existence of each other, (I mean, before this year). This do not take the merit away, the worth of what you do, because you did (does) it by yourself. Is like when two men, (scientist, by example) discover the same thing without to know the existence of the another one.
But yes, is possible to play a trompo while you make spin round a ring in some part of your body.
Good pic...and another very exhausting corporal exercise of top to keep the line!!