I got the joint unwrapped, pulled off the melted vacuum bag the removed the peel ply. Where it had been compressed the layers were well compacted and had a fine woven impression in the surface from the peel ply. Where the vacuum had failed the fibers were not fully compacted during cure. Looks a little rougher than I'd like but with practice I should be able to tidy it up. Lesson learned, try cure at 200F for 2 hours instead of 250F for an hour.
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