Tim makes the best sounding P-90's I ever heard. One of the guitars at the show was a PRS fitted with a Crawler in the bridge and 2 P-90's, in an HSS set. Everyone who tried it liked the sound of the P-90's. These were underwound for the middle and neck position, but got a great sound.
I am getting a set for my 1960 double cutaway. Tim makes a calibrated set that I am getting, this has a little hotter bridge pickup.
Think of the difference in the humbuckers and then you will know the difference in the P-90's too!