Fascinating video, what a shame that many western nations have moved away from manufacturing... We used to makes cars in Birmimgham UK; now we barely make a mess :-(
that's done after market in golf shops and such as most club manufacturers and a lot of pro shops consider spining shafts is a load of rubbish and does nothing
Pretty sure ur swing sucks that's why u always blame the damn club . It's called intense practice buddy . Without practice how the hell are ya gonna get better??