Good guess Jack....It should be 62-64 for FiM.
Non-Determinism at this point in the season comes from a few items including DCA autobyes, and average points claimed by teams attending 3rd events. My predictor puts it a 63 today based on historical data on these items.
A much simpler method yields a similar answer:
We can take all of the past 6 years of events and plot the curve of (% of teams attending MSC) vs (points to get in).
The gives a power equation for the trend of
Threshold = 22.5 * (% attending)^(-0.83)
For this year, with 102/346 teams attending, we get an answer of 62.1.
So both of my methods give pretty much the same answer.
It shouldn't exceed 65 in any case no matter what happens, so if your team has more than this already, start making plans.
Its gonna be great. Two fields = twice the fun.