I’ve been thinking about this and what I think we can do is provide an option for the minimum indent for a system that shows staff labels, and Dorico can then use either the width of the widest staff label or this minimum indent, whichever is the wider. All you would need to do is set a minimum indent that is the same as or slightly larger than your widest staff label, and you should then find that all systems have a consistent indent. I will try to get this into the next update.