He he he!!
No problem! Happy to answer that one! All of my 'main' instruments (5, 6 and 7 strings) are around 16mm spacing. It seems logical that having been so used to the spacing on those, I try a 4 string in the same configuration. For fast pick work, it's a definite benefit - (you only have to ask guitarists to confirm that lol). I'm intrigued and at some point I'll test the theory and report back. Also, looking at a longer scale, say 36", very low tunings will deliver a better tone.
As for oddity.. he he, I think I'll take that. That pretty much sums up my playing and my gear at times!