I noticed that the Instinct mirrors share many common similarities that makes it more easy to first type at which mirror someone belongs and after that which specific type.
Sp/So and So/Sp: The good citizens. They both like to obey the law, are polite, not too popular, enjoy a structured life. Not exciting to be around with (Both have Sx last) but they are the most grounded people. These people are very reliable and seem to have an strong internal compass of what is good. Often part of social settings.
Sp/Sx and Sx/Sp: The easygoing hedonists. Both have trouble expressing when someone bothers them, problems with voicing their opinion, choosing rather to leave conflicts or avoid them. (Both have So last) Like to live a quite but comfortable life, with not to many friends or unknowns. Rather taking the the easy road, and avoiding the hard road.
Sx/So and So/Sx: The confronters, these are the people who are sometimes a bit too obtrusive. Quickly obsessed. Highly aware of the people around them, they sometimes see it as their personal task to make sure that everybody is having fun. Can sacrifice themselves for a purpose or others. (Both have Sp last) Often having a winner mentality or fighting spirit.
Any comments are welcome.