TracyMax: don't seem to have much success with the flop shot. Always seems to come up way short of what the distance is stated to be.
Forget what the specs say, learn what it does for you. It's an incredibly useful shot in a lot of places.
FYI, this is how I use mine. The first line to the left of perfect is the "perfect" for this shot. It offsets the normal fly right action. This is just something I know works and I flop probably 50% of the time around greens. Purists may poo-poo this but hey, whatever works.
I know my 64 wedge flops 11 yds out of 30/40 and 9 yards out of 40-50%, both with roll depending on landing. (Three guesses how I figured that out and the first 2 don't count.)The high flight of the flop will let you get over stuff that might affect a chip or pitch and the landing is fairly predictable. Give it a serious try because that shot alone gives you 2 more distances you can feel comfortable from with your 2 wedges. GL