My skin sounds a lot like yours - I have sun spots, a bit of melasma, freckles - so I'm definitely a P, but I don't get dark spots with cuts and I don't tan. I'm going with the P because I do have sun spots and melasma, but as far as products go, I think being on the edge of two categories (or 4 in my case! I'm a DSPT, but pretty close on P/N and within two points on W/T) I just go with what my skin is doing at the time. My skin will change with the season, so in winter I'll probably have to treat it differently. I wish my skin would just be one definite way - that would be so much more simple, but oh well.
Beth