+1 to all the above. Jimmy really hit the ball out of the park with his LM basses. IMO, the 'best of the best' for those looking for a relatively accurate late 70's J vibe in an uber quality 5 string version. Four years and counting with mine.... still haven't had to adjust the neck! Plays like butter (as does Jason's), very even up and down the neck, fat D and G strings, articulate B, and moderate weight.
Literally the best 70's style J that I've ever experienced. I took it out of the box 4 years ago and started playing it and like it more every year!
Jason and I liked the tone of the LM's much better through the Markbass F500 (much punchier, tighter and meatier up top), but the point of the hang was to mess around with the Streamliner, which sounds good in a different way... warmer, fatter down low, with more 'give' to the feel, but a little too 'hollow' for a 70's style J IMO. I do not gig with that rig and the LM.
With a P bass.... that's a totally different thing. For those of you with the A-C P's who like a 'relatively clean but very all tube tone', the Streamliner/Berg combination is a thing of complete beauty! Massively dynamic in feel, and super meaty and fat down low, with just the right amount of mid grind for a P with nickels or whatever.