Lots of misunderstanding on this page about MULE's. A Terran player who drops MULE's on a gold base in the next patch is LOSING money. You'd have to be very silly to make this mistake.
SCV mines 7 minerals per trip.
MULE mines 5 minerals per trip.
For each MULE you drop on a Gold Mineral patch, you're literally dissolving ~120 minerals. You should only drop them on blue minerals, regardless of saturation.
That's what I said right at the start about a Terran being disadvantaged by mules on gold now...
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