I was wondering if anyone out there had a cirrus 5 w/ bartolini's in it. I was wanting to get some barts but I'm not sure which ones to buy. I don't really want to change my preamp ,it sounds and functions great. I just want a pickup that will give me a thicker tone than the vfl's. Which series of barts are the same size as my VFL's? Do they make passive and active specific pickups or do the electronics alone decide if your bass is active? Any help would be appreciated.