Has anybody tried them? I had a very hard time finding flats for my Steinberger Spirit 5-string fretless, but I finally found some at JustStrings.com. LaBella makes them, so I ordered a B string and a 4-string set. I got the B string right away, but had to wait a couple of months for the set. My D string broke right away, but LaBella sent me another one, which also broke. I ordered an adapter so I could use regular strings, but I've been advised that the allen screws on the adapter will probably break the windings on flat or tapewounds. Does anybody have experience with the adapters for Steinbergers? Do they work with flats?