Wow! That is one comprehensive list, thanks for posting it for all of us.
I seem to have 11 of those in varying degrees.
I think I do better with reading strangers because I am emotionally invested in people I know well and maybe do not want to see things I won't like. I also see your point about not needing to do a complete scan with someone you know....that makes sense also.
One I do not have is #17, but I know a lot of people on here are good with crystals. I just don't get a thing from crystals, with the possible exceptions of getting a little positive mood boost from rose and clear quartz. I am looking at the black tourmaline on my desk right now. I talk to it, cleanse it, and charge it, but I think maybe the dark energy coming from the two closest houses, one on either side, is just too much for it, if that is possible, or am I doing something wrong?