while reading this I became curious
as to what a rolling loose is, so i looked it up on youtube and this is the first vid I found:
http://www.youtube.com/watch?v=QyEIk_INOaY (yes this is the one mentioned above)
first I need to state a couple (humble) things: while I have little knowledge on heavy draw weight bows("warbows") I do have the experience of teaching youth (anywhere from 6-17) and adults (I've been the archery director at a boy scout summer camp for a few years, and have run ranges for the council for a little while before that); also I'm also working on my physics degree.
Teaching the youth (under 12 usually) is some of the most fun I've ever had but the thing is they sometimes have trouble drawing 15-20# bows. So I teach them a different way to draw the string, in which they use both arms to draw the bow and to loose quickly (more on this in a sec). After having watched this vid several times I see some things I like about it and well 1 thing I don't like.
That is the pushing off w/ the back foot; from a instructor point of view (especially for those who are new to this) it has safety hazard written all over it; from a physics point of view it does very little to add to speed to the arrow (this is assuming the release of the arrow and push off are timed perfect) the reason for this is that they (the push and and launch of the arrow) are 2 different force vectors and only a small part of the pushing vector is imparted onto the launch vector, but it is added (if done exactly right)
The only other problem is consistency, with a modern style draw you can be very consistent w/ your shots (necessary for target shooting, dosen't matter much if you plan on taking out an invading army); using this push off method makes it so that you have to reset your stance every time, and I'll be honest for us guys that is not an easy thing to do (w/o massive, constant practicing) , but ladies have an easier time w/ it, don't ask me why thats just how it is.
Now the way I teach youth who have problems drawing certain weights is this:
first hold the bow so arrow points to the ground infront of them
next draw the string to they're cheek/corner of mouth (where ever they're drawing to)
while drawing bring the bow up to where they are aiming
once they have it on target loose
Is this similar to how flight shooters do it?
sorry for being soo long winded, but my opinions usually are
...
--Mark R.