I play to a 3 to 5 handicap and am a pretty consistent ball striker......except when it comes to full shots with my gap wedge and sand wedge. More often than not, I come up woefully short of the distances I know I can hit those clubs with a good swing. I suspect that I am sliding the club underneath the ball, but like so many things in golf what you think you are doing may not be the case. Any suggestions would be appreciated!