i see when your feet are moving at their fastest your heels are moving left to right somewhat. is there something to that? does it reduce strain?

Regards,
Tim Quinn

it's the swivel technique....

yeah search the forum, there's plenty of information about the swivel technique.

It's just a technique that i use for balance and for keeping my body straight.there are many discussions about it already,it's just a balance thing 100% and works great for me and many other guys i saw.

George