After realizing that La Bella Bass VI flatwounds wouldn't fit due to the difference in tailpiece positioning, I ordered a set of these since they're directly recommended by Thomann for the HB GuitarBass. Quite the nasty surprise to find that the winding length on these is too long to be usable. Loosely pulled straight, the windings on the low E string go about 2 inches past the tuning peg, 1 inch past on the A string, and the D string windings end right at the tuning peg. This is where I stopped attempting to install these strings, as all 3 of these will have a significant amount of the wound string wrapped around the tuning peg, a huge problem for flatwounds. Adding to that, the low E is too big to fit through the tuning peg, so by my estimation it will end up with 6-7 complete wrappings around the peg to get to tune.
Bottom line, if you're thinking about getting these strings for your HB GuitarBass, save your money and try something else.