NJ-Bowhunter

I was looking for information on string loops earlier and came across these- http://www.magnock.com/productpics.html#pic1 The logic/ principle behind them seems to make sense...no nock friction at the point of separation from the bowstring, but has anyone used them? They seem to be a relatively inexpensive alteration, but is it a gimmick? I'd be interested to hear some thoughts on this?

&quot;Measure twice, shoot once <img src=icon_smile_evil.gif border=0 align=middle> &quot;

bigbulls

5shot did a review on these a few days ago. Look on page two.