Sorry I don't have an answer, but I'm curious to know about this as well. I think the LSAT is easier to get a good score on than the verbal section of the GRE, as the latter involves a whole lot of memorization. The quantitative portion of the GRE, on the other hand, seems like it can be broken.
Anyway, I got around 165-168 on LSAT practice tests back when I was still considering law school; anyone know whether this would be high enough to get into a decent MPH or MS program?