Not a lot to report really ... fine tuning all the other preparations apart from running: food & drink, pacing, etc.
I'm not sure what other runners think but, for me, pacing is the key to running a good race. Studying results from my previous races it seems that during a 24hr race everyone slows down - even paced races are exceptionally rare.
With this in mind my aim last year and this has been to slow down less than the other runners. I may not be at the top of the leaderboard for the first few hours but hopefully I'll get there in the end. I've just got to stick to my pre determined plan [adjusting things as necessary as the race progresses].