Jazzman105 I got to play two a few weeks ago. A 70's MIJ Morris SG/LP copy with dog ear'ed P-90's and a newish MIC Fender Thinline Tele w/P-90's.
I realllllyyy liked the Morris - had a gnarly/snarly vibe to sound, but with a lot of dynamics - sounded great clean and responded really nicely to gain. The thinline was flat, a bit muddy and uninspiring in comparison.
Not sure what passes for a 'good' P-90?