very nice putt!
i found another replay of it going in last night which also comes in from underneath but a shallower line than yours. i've always tried coming in from the top and i've been within a couple of feet so it is possible.
think i'll start giving a similar line to your's a go now as the relief of the green seems to feed it in better from underneath.
it's a shame the camera angles (on both replays) are so distant!
hopefully my next post will be of me sinking it!