Yeah things like that happen doing this kind of thing. Those slivers of carbon can destroy your finger tips.I've even had one go under a finger nail before.
Mr goat. Regarding that ashtray door. Do you have any problems with yours binding opening and closing?the only time I did one I couldn't wrap the entire plastic piece and keep it from sticking.
I've experienced four kinds of injuries doing this. Carbon fiber slivers stinging, single strands getting through your skin causing pain and itch, skin removal from sanding too much, and the worst, allergic reaction from the epoxy powder generated from the sanding. The last one required medication.
Ashtray door: yes I have binding, caused from the upper part. One of the small fitment issues. I'm gonna take some material off from the console in order to fix it.