I've a 2010 old model California VS (p bass) and a 2020 Basic (Stingray basically). I've owned an actual stingray and I prefer the Basic. Better balanced, not too heavy, and generally a warmer sounding bass, with more comfortable neck dimensions and overall better features. The 2010 California VS is also a great bass, my only slight fault is that the bass was a little sterile sounding to begin with. Those big polepiece pickups work great for an MM or bridge pickup, I just found that as a precision bass i wasn't able to get that punk p bass growl and it seemed a little bit too clean. I replaced the pickup with a Lollar Pbass90 and its a different beast now. I tried to get a replacement pickguard but Sandberg have washed their hands of the old model Californians.
Overall the Sandberg basses I've owned are rock solid instruments, but be aware that sometimes they dont have the same tonal characteristics of the instruments they were based on. I know this thread was for TT4 , TM4 basses but I suspect my experiences are the same or similar across the range of instruments.