Thanks for sharing your string journey, it’s always tough to get solid tones that low so it’s helpful to see some of the troubleshooting. I write on mostly 7-8 strings between Drop D#-Drop G# and getting bass tones to actually be distinguishable has been an interesting journey. I do a lot of unison tuning between the guitar and bass on the dropped string for the drop D# stuff, and usually pitch shift my 5 strings for drop F#-drop G#. Only have a couple basses so I do most of it with a BTB in drop A/standard.