I recently picked up a Skyline JoBo 5 with Bartolini 57 J1's and a J-Retro preamp. The original electronics and control plate also came with the bass. I'm wondering has anybody compared or used both the 57 J1's and the Lindy Fralin Jazz 5's? The growl and punch from the Bart's is pure heaven. From what I've read will the fralins be a little more smooth sounding?