Hey guys, I've been wanting to replace my pickups for quite some time on my Warwick Thumb 6 BO. I currently have the stock active MECs soapbars. I found the dimension of my pickups to be 32x118mm but the only Barts i found with these are the P4 and they seem like 5 String pickups. Anyone know anything about that? Also which preamp should I get. Any advice is more then welcome. Thanks!!