I found an early MIJ Squier Jazz souped up with Bart J's and a Badass II bridge and am considering getting it for the parts to make these two hybrid J+MM basses (I have the MMs from another Warmoth bass I found). Would one setup be better than the other? I had a crazy idea to get two identical basses, one with a MM/J and the other one with a J/MM configuration. Would one be better for a fretless than the other? Please feel free to ask for clarifications. Even I am not entirely sure where I'm going with this... Thanks for any input.