Aperture: Highlights Follow-Up

As a follow-up to some of the comments, I did a bit more work on the lamp image. If I apply all the corrections except the mono conversion I get this quite acceptable result:
lamp11
I did try the highlights control, even the advanced version, but found it useless at solving the main problem: too many pixels jammed up against the right-hand end of the histogram that would not move. Also, the advanced version of the tool gives me five more sliders to play with, and so an even smaller chance of getting the adjustment right.

Generally I try to avoid the Highlights and Shadows adjustments because they are very compute-intensive and hence slow. I do those last on any image if I have to. Here are the stubborn white pixels I was left with:
lamp10
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