Hi guys, I own a Musicman Stingray 4 strings made in 2003. I would like to change the preamp and the pickup because the volume is not the same on the E-A strings and on the D-G strings. Also, i found that the output on the G string was significantly weaker than the other strings and also a lack of clarity. I want more bass and mid but less high. Here are some suggestions but i don't know which one to choose. -Bartolini MMC pickup & NTMB 3 band preamp -Seymour Duncan(Basslines) SMB-4a pickup & STC-3M4 preamp -Nordstrand MM4.2 pickup & John East BTB MMSR preamp -Aguilar OBP3 preamp? Please help me for my quest! Thank you very much!