Popped it in the bridge position of my alder bodied, floyd equipped MIJ Jackson PS-4. This may be the pickup I've been looking for all along. Full and thick sounding with just the right amount of highs and clarity. Everything much warmer and nicely balanced.
I've seen people concerned that it won't have enough balls to do metal. With the right amp, it will do most heavy styles. You can certainly shred with this thing. It won't excel at say at technical death metal though or thrash. The smoothness of the highs doesn't won't give your sound the quickest attack or searing highs that are so prevalent in metal. The lows are tight and big enough to work some grinding palm mutes into the equation.
As a hard rock pickup this thing is awesome. Fat and juicy without mudding up. The cleans are quite nice also.
I had a PATB-2 Distortion in the bridge position before and I must say I was a bit worried I wouldn't have much use for this pickup. Going from the huge output of the ceramic PATB-2 to the much more conservative alnico V PATB-3 could have taken a lot of adjusting. Well, the Blues pretty much filled all the voids of the Distortion model. The only thing I can find lacking with the Blues Saraceno compared to the Distortion is less tightness and cut. But it really doesn't matter too much to me since the tone is so much more pleasant.
I'm guessing the PATB-1 Original would probably be the best of both worlds however I'm going to stick with this for a while. It's really made the bridge position sound much more fat and less brittle.