There's a very, very blurry line between being a "perfectionist" vs "procrastination". On the ADD side, at least, it can be nearly impossible to officially "finish" any project. You can dress it up and call it "perfectionism", but in many cases it's really more a case of feeling increasing amounts of anxiety as a project's end approaches, because you keep thinking of more things that need to be done, or feel like you want to just rip half of it out and re-do it differently.
The outward appearance can be the same, but I suspect "pure" aspies are more likely to eventually get a project finished properly and "for real", while those of us with ADD just kind of get to a breaking point where we say, "screw it, it's done" and move on without ever officially finishing every last detail. Look around my living room, marvel at the awesome remodeling job I did, and try to not notice the 14-inch section of baseboard I somehow forgot to paint (and will probably never paint until the next time I paint the room, 10-15 years from now).
For those of us on the techie side, blue "smurf tube" conduit and removable baseboards are a wonderful thing, because it means we can leave open the possibility of running future wires and cables behind the walls whenever we want to do it someday without having to actually tear into them again. I was utterly paralyzed for weeks trying to anticipate every cable I'd ever need to run behind the walls -- from cat5e to 16/4 to fiber -- before I discovered WireTracks & Smurf Tube as a way to finally move forward in a way that allowed me to defer the actual use until I really need it for something.
_________________
Your Aspie score: 170 of 200 · Your neurotypical (non-autistic) score: 34 of 200 · You are very likely an Aspie [ AQ=41, EQ=11, SQ=45, SQ-R=77; FQ=38 ]