J, the 1957 k grind knuckle grind is what i had. had 3-4 knuckes as opposed to the single one stew is referring too.
i liked them a lot but they performed poorly from a perfect lie. these were stellar in the sand in rough imho. with regards
to the single dent, i found they felt bouncier than the K. they were not as versatile for me. different strokes really.
now the WC is the golden goose of the miura wedge line. it really is an all around wedge. i like them a lot. nice shape
and very easy to use. i have monaco in the AW and a DG spinner in the sw.