Hmm, interesting idea that id like your thoughts on.

each worker unit does 5 dmg and takes away 8 mineral. Which means teh minerals must have some weakness to the workers dmg. This is asssuming we count the miin count as life. thats a 5:8 ratio. Statistically that would mean that if an scv did 10 dmg it should e able to min 16 minerals. And so and so forth. Interesting subject.