Nope, I had similar issues with two sets of 760FS. (Have read of a few other users who did too.) The replacements that Labella sent also had the same problem. Made my basses sound like a sitar on the D and G. The strings were kinked from new which is probably what caused the buzzing. I surmised that someone packing them has been bending them too much.
Tried the same strings on three different basses and the problem was there. As soon as I put on a different string brand, the problem went away. (I’ve had a few used sets of Labellas that played just fine but some of the new sets I’ve had had this issue to some degree.)
It’s a bummer as I really love the sound and feel of them.
(GHS Precision flats don’t sound the same by the way, at least not to my ear. I have them on two of my basses currently.)