Three things here
firstly the very act of having the bar low on your back will cause you to lean forward more than high bar squats
Secondly, low bar will make you stick your bum out more and that will also force you to lean forward more
Thirdly, repeatedly doing low bar over a period of time is a good way to fuck up your shoulders.
thats very interesting.do you do requests from your fans?of course you do.please can you demonstrate what you are talking about with a light weight..say 120 kgs? make sure you talk us thru it and a good long pause at the bottom.im interested in these biomechanics that you speak of.