RE: a pin for shots less than 20 yards?
Only way I'd shoot anything other than my 20....is if I was taking a 2-3 yd shot. We had a 3 yd shot in a 3D shoot, this past Winter.....and I shot my 50yd pin. Perfect......though...as a somewhat novice archer.....it had to be proven to me...lol. It makes total sense if you think about it, though.
The first time I atempted a shot like that.....I remember putting my 20yd pin on it....and then looking out the side of my view window of my sight. I KNEW it wasn't gonna work. I honestly just shot it where I thought it looked right.....and later confirmed it was a 50yd pin shot for ME at that distance (or lack thereof).