Buzz, the only reason this thread is a "quagmire" is because of the ridiculously detailed, long posts and convoluted examples. If you could make a brief, concise list of the points you are claiming (which are frankly tough to discern at this point), then it would be easier for folks to either agree with you or point out errors. My list, for example, would be:

1) When you have twice the odds drawing to a split as you do drawing to a scoop, and have to risk the same amount in an equal-sized pot (this is the setup in the OP), then the EV in the two situations is equal.

2) Of these two scenarios, drawing to the split has the lower variance.

3) Using twodimes when there are multiple street of action to come can be misleading, unless you are accounting for potential future action correctly, which is non-trivial.

These three points are incontrovertible fact.