With these current plots, I’m getting a worse limit than Dan has, even though he ignores the information from the electrons.  I’m currently running jobs to calculate the tag rates exactly, (as Dan does it) instead of throwing random numbers.  This should improve my systematics, but it also vastly increases the running time. (I have to go through all the combinations, so it runs in factorial time.  I could probably speed this up if some wants to prove that P==NP.)