Nah... I just spent the last 3 hours fixing it myself. Works like a champ, now. There were a myriad of little problems, that I just worked through one at a time, very methodically:
- The base plate, where the saddle assemblies slide back and forth, had patches of some kind of sticky -
very sticky - goo on it. There were patches of it on the saddle assemblies, too; as well as various other parts - like the saddle travel screws. That stuff was a real mother chicken to get off, too. I finally had to resort to brake cleaner and a stiff brush, to get it off of everything...
- On two of the saddle bodies, tap overrun in the saddle height adjustment holes created burrs that made the drums hard to turn. Fortunately, I'm a very good hand with a needle file...
- Every drum had some kind of burr on it - in widely different places. Needle file, again...
- Threaded holes for about half of the screws had either debris; goop; or both, in them. Brake cleaner, pipe cleaners, and running the screws in and out, took care of that...
- The holes in the base plate for the D and G string saddle adjustment screws were binding on the screw. More work with the needle files...
Once I got everything clean and free of goop, debris, and burrs, I sprayed the bejeezus out of it with Break Free; wiped it down; and re-assembled it. Put it back on the Blackbird; strung it up; re-tuned and intonated it; it's now working like it should have, in the first place. So, do I like the Babicz bridge - now? Well... it's better than some of the bridges on some of my basses; the equal to one or two others; and, sadly, not as good as some others. On a Thunderbird? I really prefer the old 3 pointer, to tell the truth...