There's an easier way. Set the very first frame to "constant' interpolation. The keyframe should be white and the value = 0 After that, every new key frame should default to white until you change it deliberately.. What I do then is set a keyframe at 41 (value stays at 0) and another one at frame 44 (value still stays at 0). Then I set a keyframe at 42 with a value of 1.0 and spline interpolation (green keyframe). Then I select keyframes 41 through 44, copy them, and I past them along the timeline as desired. I can easily look at the timeline and see where the blinks are on the first eye and use that to set up the blinks on the second eye. By doing it this way I only have to make worry about the interpolation once at frame 0 and then once when the blink is fully down. The "constant' (white) keyframe at 41 and 44 act as the 'firewall" between that blink and any others. I apparantly set faster blinks than ya'll do, but that's just a matter of personal preference. My experimentation showed me that the initial down movement of my eyelid is faster than it's return to the up position.

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