hm, in this video the XI has more clarity in the sound, but this is not a real A/B test - he uses a XI-6 and a XII-7s
a 7-string always sounds a bit different from a 6-stringer, because the instrument has more neck wood which delivers a more meaty sound.
so i don´t give that much about this video.
Haha, no no, it's alright! I was just speaking from my perspective. Of course there are always people who haven't seen something so it's just nice that you post it so those who haven't seen it, can see it