[biomechanic]

Now isn't this funny, on iseek here you are prononcing yourself an exbert and here your showing you clearly don't know what your talking about asking for advice.
Isn't it funny another company backs and produce the same graph as we do, but then T.P.I argue different, but then again T.P.I six dof system is inacurate.
If two companies are producing the same chain wouldn't that indicate maybe T.P.I are wrong, if two research companies who have been in the game for years provide graph maybe T.P.I are wrong.
Your misinterpreting the graphs, they aren't saying the shoulders aren't moving all it's saying is the hip start first,then shoulders follow.
but this what happen unless your trained in how to correctly understand and read the graphs you develop the wrong perception of what they mean like you do, in order to understand these graphs, you need to have studied biomechanics and been trained