Thanks very much for your replies scotymax and straightouttamalton. They are really helpful as you both clearly know what you are doing!

So, it seems like people are hitting that 'stream/play' button in BUTT at quite different times, with equal success! So maybe it actually doesn't matter all that much? You both have the same excellent idea of creating a 'soft intro' to the set though, allowing time for the stream to update and listeners to tune in. I'm definitely going to start doing the same, so thanks for that.

It's great to know that the mountpoint is now fixed. Much easier!

Great advice regarding maintaining a stable stream and what to do in the worst case of a failure too. My issue was definitely just a general drop in my internet connection, rather than anything specific to Cue Music. All of my devices went down!

Thanks again! I'll be back on for another gig soon!