if you measure how far you are drawing the arrow from the back of the bow to the string,, your draw may vary with a shallow handle ,, like a flat d bow,,, to a more modern looking handle that is a inch or two deeper,, the thickness of the deeper handle will make cause the arrow to be drawn further measured from the back to string,, making the draw of that bow longer,, you would still be moving your draw hand the same amount(if you are consistant), but the arrow would need to be longer,,
for the deep handle bow,,