I would prefer reset on during the race and if someone flips he can reset and gets a Stop & Go Penalty for this by the server admin.
That's really something I should have suggested earlier I know but it came to my mind yesterday. I mean wouldnt it be horrible if there is a team leading in GT1 for 13 hours without any Shift P or time out and then a fcking curb destroys everything, so with a stop & go they would have the opportunity to recover from their mistake and still be able to win the race.
Only my opinion, would be nice to hear what you think of it, commandermas?
Edit: Same rule was also in the last season of the LFS Endurance Series and it worked perfect there.
You should also keep an eye on the Desire of Patience Tour 2010/2011, they will have a 24h race with the GTR class, NGT class and LRF next year again, but as Yann said the Masters of Endurance 24h is of course more prestige and definitely one of the hightlights of the year in LFS.