Playing a long par 4 into wind in a match this morning, after a good drive and a reasonable second shot with a hybrid, I was about 100 yards short of the green. Decided that with the into wind component I needed a 9 iron. Hit what felt like a very sweet shot, only to see it land 20 yards short. Then found I had used my gap wedge by mistake! I was almost sure that I had pulled my 9-iron out of my bag. 