Venus Low Power v.s. Enhanced Acquisition mode - Any info?

Does anyone know what the difference between the low power and enhanced modes in the Venus chip is? Is one faster/slower, more/less accurate, and how much current does that use?

I asked skytraq and the answer is basically:

Enhanced uses 4 search engines and takes 70mA (finding satellites TFF faster, mainly initially - parenthesized my opinion)

Low Power uses 2 search engines and takes 50mA.