I did try them, but, again, because my bass has a maple fingerboard, I found no success. I called to make an appointment and spoke with her but the luthier never called me back. So it goes. I'm working out a partial trade for my SVT-4 Pro/410HLF for an Upton. If that works out I'll have a really good bass with, most importantly, an ebony fingerboard, so I shouldn't have these issues in the future.
I have to say my little Palatino has actually been a great bass but the maple fingerboard, however, has been a real problem. I'd recommend one to a beginner except for that.