[quote name='The Admiral' timestamp='1425649010' post='2709379']
've been through the obvious like - tuning, timing, turn up on time with all your kit in good shape, and very well rehearsed and clear on what you are looking to get from the sessions, don't get pissed the night before etc.
[/quote]
Seems like you've got it pretty much covered. Add in an adequate supply of snacks/sandwiches and soft drinks, not experimenting with a new part, letting whoever's mixing do the job, and if somebody's putting down an individual track, avoid putting pressure on them (eg. we retreat to the kitchen).