I hunt with a 3 pin sight and I am converting it to a 4 or 5 pin sight. Why?

1. 3D shoots often have targets longer than 40 yds. ( ex.20, 30, 40 pin)
2. If I make a poor shot and the deer is standing broadside at 50...I want to be able to take a follow up shot.
3. Practicing at longer distances will improve your shorter distance shots.

Don't get rid of that fourth pin.