Exactly, why I was asking as I already knew the outcome had he wanted that information.

As I slide the bar back, it lowers the pin and would cause me to hold higher. Pin gap would also deminish the closer I got the pins to the riser.

If I was sighted in with the bar very close to the riser and slid it out I would hit very low and pin gap would increase. If I had a 20 yard sight bar the pins would be gapped exactly the difference that my arrows hit from 20 to 30 using the 20 at 30.