Hi again, Decreasing the font size (e.g. to 15) and/or increasing the line-width (e.g. to 7.5\in) so there are no lyric interactions/adjustments essentially eliminates the alignment problem(s).
That being said, even with very spacious setups, there are still [extremely small] horizontal variations. Maybe there's still some command(s) I'm not using, or not using correctly/enough? Thanks, Kieren.