I have a Stockholm bridge, supermassive neck set in a ESP style LP, tuned to drop A# for In Flames and Machine Head style playing. Great pups. Great bottom end that is both crushing and fat, but not in an overdone way as it has that certain SC definiton which you can hear so clearly when playing low strings clean compared to a HB. They also have a good amount of output without seeming hot since they remain rather uncompressed and open, especially in the midrange, which roars in a beautiful raw way. High end can scream or sing, depending on what you want. Just awesome.
Great for harmonics too.
I use mine from In Flames to pop punk. The difference between the two is that the Stockholm is like a pumped up version of the Supermassive, having more output, hotness, bottom end, and agression.
To me P90s really the best of both worlds, so get one. All the defintion and spank of a SC, but with the mids, bottom end, and power of a humbucker. Kicks butt hard.
With that set you chose you should cover a lot of great ground and deliver tones with serious character. IŽd be shocked if you did not love it.