how thick is the 'panel' here?
I assume we are talking <2mm? so not much point in "scarfen the edges"?
No first hand knowledge of the area in question, but based on the composite fuselage pieces I have, seen I'd say 1/4 inch minimum (~6 mm), probably closer to 3/8 inch (~9 mm). Granted, I never actually measured anything, but visually I was a bit surprised at how thick they were (then again, I had a similar reaction the first time I saw an aluminum fuselage skin - they are thicker than most people think). Remember, unlike that access panel that fell off in India, we're talking primary structure here.