I've pretty much rebuilt as much as I can, with just one pesky 30 day BoA CC from 2008 that won't budge. I've been pulling only EQ every so often as sort of a barometer to the improvements.
However, I've been seeing an ad on TV for some service, where the individual in question has a score in the 790s, 780s, and then one in the 580s. I'm not sure if this is for effect, or an actual possibility. Can there really be a 200 point difference between, say, TU and EQ? Or can we reasonably assume that if one report is pulled, the other two are probably within +/- 40 points or so (this also seems to be validated by looking at various people's Fico Challenge signatures - every step of the way, their scores all seem to be grouped within a reasonable amount of error.)
