How cool! I am wondering whether the Mechanical Turk workflow follows most other groups of humans in IT...where we look to automate the repetitive incrementally over time. I suppose the efficiency team would be AI experts, pretty cool job.
For your two tasks I am left wondering whether you took on a high-valued* task and a low-valued-task ($0.06 + $0.01) or whether they were more closely valued ($0.04 + $0.03).
* High-valued is relative in this case ;-)
There are no special teachers of virtue, because virtue is taught by the whole community. --Plato