The back left pin position, wind conditions and incline all factored in to selecting the 5 iron over the normal 6 or 7. I choked down to the bottom of the grip, flattened out the backswing and followed thru. The ball disappeared over the front of the green, my playing partners Bo and Fred were able to watch it roll about 20 feet into the cup. The feeling is unbelievable! Two weeks ago, I put one in on the 16th hole of the same course on my second shot for an eagle. Pro V1 was in play that day and everyday! Thank you Titleist for your ball fitting Day. I play 3-4 times a week and never play another ball.