[SECGolf]

Clutch and squeeze the mop handle as hard and as tight as you want- it doesn't have Lag pressure- a tight grip, yes, "?

Interesting mention of tight grip. That's why the common advice of a "loose grip" can be harmful. Severe reduction in the chance of your computer registering initial club head lag. Didn't Kelley say club head lag is elusive? I know the secret of golf. You have got to detect the pressure in your hands and maintain it (by driving the hands).