Are There Contradictions and Ambiguities in Chapter 1 of Capital?

Geert suggested in his Omaha paper that, in Chapter 1 of Volume 1 of Capital, there is a “shift” in Marx’s logic from Sections 1 and 2 to Section 3, and that this shift may not get the attention of the reader if Section 3 is read “with the labor-embodied spectacles” of Sections 1 and 2 (pp. 1112). Geert does not specify the precise nature of this “shift”, but the suggestion seems to be that there is a fundamental shift in the type of logical method employed and in the basic theory of value, from a labor theory of value to a value-form theory of value. Elsewhere, Geert has argued that there are “two streams” in Marx’s texts – a labor-embodied stream and a value-form stream.