The thin aluminum on the top the rear spar seems almost to thin to countersink. Aside from using the micro stop countersink, is there a better way? I tried a test run with a deburring tool and it seemed to do a respectable job. ( note: some of the notes are from previous additions so they may not be applicable)
![oJb.png](/proxy.php?image=http%3A%2F%2Fhalie.com%2Fscale%2F50%2FoJb.png&hash=e7a3553732cf1ad78ba034dfc1cdc35b)
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