The path, tempo and face angle seemed to line up fine in this admittedly un-scientific test, but more importantly, when the device said a putt was bad, we generally missed it.

ENGADGET: 3BaysGSA Putt: a Bluetooth golf gadget that puts eyes in your putter (hands on)

The 20-year-old Miller skated in slowly on Dan Ellis and briefly lost the puck before calmly gathering it and scoring from a tough angle near the goal line.

WSJ: Miller's SO goal lifts Rangers over Hurricanes

You update your internal picture, perhaps changing the angle of some of a line here or there, or adding another element.

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