Speed Training w/ Speedchain

[Toolish]

Research has shown that the body only contributes 10% of power to the golf swing, whereas the speed of the hands and their actions contribute 90% of power.

So, you could hit it 90% as far without moving the body? Surely not...try hitting balls without any shoulder turn and tell me how you go?

I agree the hands are important, but those numbers don't seem to make sense at all....can you point me to the data?

Or am I misinterpreting what you are saying?