Bass direct have the xm2 ( full bodied bass) with TransTrem . They're asking for £1600.
I have the version without the trans trem. Plus my one has the rare p/ j pickup version .
I think it's a tad overpriced, but if I had the cash I would have to bite the bullet.
Some say the trans trem system was very problematic . But I do like the idea of it being able to change your bass to bead just by locking the bar. Plus, it has a whammy bar . Good for metal.,