I have visited this forum maybe a year or so ago but this is my first post. Most stuff I knew from when I first shot (very good free training at the range I went to) but did not know about the lead part until reading this post. Thanks Tim! Great info.
Also thanks to the poster of the detail strip; was surprised that link is still active even after 3 years; anyways looks like someone posted it on youtube:
That is one great video.