How to remove screw from hardtop?

I had to remove the front latches from my hardtop so I could
replace the plastic "bullet points" that seat into the plates
at the top of the windshield. One of the latches came off and
went back on without a struggle, but the other was almost
impossible to remove. Two of the three screws just barely came
out w/o destroying anything, but the head of the third screw
twisted off. I drilled into the shaft of the screw and got an
ez-out to grab, but the ez-out snapped before the screw would
budge. I tried to drill out the ez-out, but it's too hard. I
supposed I could try a titanium bit.

Anybody have any suggestions on how to get the screw with
embedded ez-out out? Both the screw and the ez-out are broken
off below the surface. The metal bracket in which the screw is
broken off is totally enclosed in plastic, and there doesn't
appear to be any way to get at it directly.

--
Grant Edwards grante Yow! I'm having an
at emotional outburst!!
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