Not a certain club per se, but chipping or shots around the green. If I am chipping it close, my scores are usually decent.
For me, the driver is key for my round. When hitting it bad, it adds the most strokes through penalties or dropsWhich club, if you are swinging it well is the key to a good scoring day?
And if your drive is OB you'll be lucky to shoot the same score as the guy 3-jacking for bogey.Only answer to this question should be putter. If you hit a wonderful drive and put it 30 feet from the hole on approach only to 3 putt it you’ve negated any good things that happened previously