In the process of picking up a 90s Ibanez SR400 4 string with the PJ configuration. My other 2 basses are Ibanez SR505 & 525 with Bartolini MK1 pickups. Looking to install an aftermarket P pickup that will be closer matched to my Bartolinis which are described as Powerful Lows and Low-Mids with Bright Treble. Active? Passive? EMG? Dimarzio? Seymour Duncan? Please give feedback. I play Metal (Metallica Tribute) and love the tone I get of the Barts through my Peavey Tour 450 & Fender Rumble 410 cab. I picked up an Ibanez SR300 but the stock pickups are far too weak and trying to find replacement pickups has been a nightmare (no decent used MK1s on Ebay). Suggestions Please!