I bought and hunted with the Yikes last season. Very solid concept, well built, works extremely well. A little pricey at $50 for what it is, but highly recommended.
It's on my brother's bow right now, and I'm playing around with a no-peep. He was having a grip torque issue, which the Yikes points out easily, so I took pitty on him
If you can get past the $50, I highly recommend this site. Can be used in single or multiple pin situations.
If you do buy one, Don't change your anchor to accomodate the sight. There are ways it can be mounted to fit your style of shooting. Call the company, they were happy to help me.
yikesbowsight.com