Just saw a video of this on YouTube. Any one use one? Seems to me that if you have the same anchor point, and use a rear peep sight, then you don't need one. What am I missing? or is this just a diagnostic tool?
Peter.

The Square-up is a great tool to add to any bow.My friend Mike Scaniff invented and sells it.I have used it since the first prototype and it has helped me and others.You could have the same anchor point and still have bow torque.The Square-up helps you see the torque that you might put on the grip with your front hand.the two metal wires on the Square-up are set back behind your sight by about six inches in there housing.When it is set up,which is very easy, you will see right away when your pins move left or right out of the line-up.When properly set up left and right misses are very rare.He sells them on his website.I'm not advertising for him but you can always google Square-up bow sights.Besides being a great, simple, and well made accessory Mike is a really great guy.