I played a Stick about 38 years ago. My head still hurts a bit. Talk about "this looks familiar, let's have a go. Oh wow, this is bonkers!". I take my hat off to anyone who plays them. My brain is not wired that way.
I have a 6 which is tuned to bottom F#. It is lots of fun. Am I getting the full fundamental note? No chance. But I use it for last notes in songs and as long as the harmony above is all good then it provides a nice cushion for everyone else to sit on.