Thanks for the reply. I played with the bolster screws briefly without finding a sweet spot. I may have been able to with more effort, but did not pursue further. I did not flush/oil. I decided it needed another home rather than going through the effort. I don't mean this to be rude, it just wasn't a fit for me. I definitely appreciate the progressive effort.
The lettering is interesting. I don't know enough about the process to comment intelligently, but my observation was that my first gen Roundhead lettering was flush, while the Shuffler was rough enough to gather (and sort of embed) lint from my pocket during the brief time I carried it.