I own a Sadowsky Metro RV5 bass. I love this bass but theres one thing that bothers me. I cant get the same punchiness/mid response when playing with the bridge pickup on my Sadwosky as I do when playing a really good Fender Jazz. For some reason there seems to be a low mid scoop on my Sad..so I've concluded that it must be the Hum Cancelling/Stacked pickups on it versus the single coils I try on the Fenders. I've decided to look for a passive set of pickups for my Sad and wanted to know if you guys have any recommendations. I also wanted to know if the passive pups will be able to go through the preamp of the bass in active mode or will I have to leave it in passive mode? I was specifically checking out the Passive single Coil Seymour Duncan Pups and wanted to know if these will work in my Sad and if anyone has any experience with them. http://www.seymourduncan.com/products/basslines/progressive-1/sj56770_sj57074/ Thanks!