[Andy R]

I take a divot with Basic Motion, but for me personally, the 'putting grip' chip is a 'brush the grass' deal, that gains it's structure though Extensor Action. For the stroke itself, I simply bend and unbend my right arm in an underhanded pitching/tossing motion per a Chuck Evan's video I saw last year. (Similar to Edz I would imagine)

I use this same procedure with a standard grip as well. Once you establish low point, contact is assured and you can focus on feel.