Has anyone tried this?

http://www.peepeliminator.com/

well, one of my friends uses something like it called no peep peep sight eliminator from cabelas and loves it

I have the no-peep as well.

I looked at this product and immediately tossed it out. It covers up a large portion of your target, and isnt really precise enough to show you small amounts of hand torque.

I ran into a guy at the range using a product called the 'anchor sight'. Its like the no-peep on steroids. I may check it out.