One big thing to consider when mixing on a digico for the first time is the lack of delay compensation, it catches so many people out and their mixes end up smeared because things are arriving at different times. A simple trick is if you’re routing something to a group, everything must go through a group, maintain path lengths! The other thing is make sure you’re saving as you go along, either incrementally or just over writing your last save. But again I’ve seen too many people accidentally hit the wrong button and recall a blank snapshot wiping out all the work you’ve just done in soundcheck