Arm lock putters need six or seven degrees of loft
For an arm lock putter, the fitter says you need about six or seven degrees of loft because the club leans forward with a lot of shaft angle. He notes this grip is specifically designed for arm lock putters (what used to be belly putters).
Channel: Grant Horvat Golf
Watch official source at 26:07Why this context matters
Said during an arm lock putter fitting.