After trying out many different ubass strings (Thunder Reds, Thunder Browns, stock white, roundwounds) I think I found the best ones for my likes.
The strings are super smooth, allowing for very easy sliding. Absolutely no sticky fingers issues so far, significally better than the roundwounds and a world apart from the polyurethanes in this regard. I only play with roundwounds on my full scale basses, so I appreciate the flatness :-) Note that the tension is pretty high & not the best for bending. I'd say that's it is slightly higher that the roundwounds & much higher than the polyurethane ones.
On my Kala Nomad the tone is not as 'uprighty' to my ears as the polyurethanes, giving the ubass a bit more of an acoustic bass sound. Also, much less overtones than the roundwound strings, with the fundamental being more present. There's also zero contact noises (right when the finger touches the strings), which can be an issue with the polyurethanes.
The tuning didn't take long to settle, but some clipping of the end of the string may be needed since they are a bit long.
All in all, best ubass strings I've tried so far.
