What a great post!
It's almost midnight and I'm about to sleep but I can't wait to test this out tomorrow.
I've been sitting way too much lately, leading to back and neck pain, also because all my furniture seems to be the wrong size / at the wrong height
( Dutchman living in Portugal, everything is a little too low / small here haha )
After trying this technique out, I will get back to you with my findings.
Un abrazo,
Vincent