Today's TB Plus aren't your dad's TB Plus, they have tweaked them again and again, every now and then an ad would claim "new design TB Plus pick-ups", it has happened before and you can hear differences between the generations too, not in overall character but in output, sub-bass and high frequencies. For some reason, the guitar size versions always sounded best if you like a slightly abrasive and sharp, but still round sound. They also worked well with the Bartolini TCT circuit, especially the soapies, the sound of an active LP Special - actually an entry line bass - is no less than bludgeoning.
The newish Babicz (Jim DeCola, I'm such an idiot!) pups (not available as guitar size pups though I wonder why not)- yet? - are an excellent choice if the TB Plus sound is a bit overcowded in frequencies for you, along the lines of "too much of everything falling all over". They are definitely more transparent without being sterile. OTOH, what the Babicz (ditto!) pups do not provide is the raunch of a TB Plus in full flight. Horses for courses. If you dig the TB Plus general sound character - like I do, it's my preferred mass-produced rock bass pup - then look no further, but flexible it is not.