the C2CC is internal kind of linkage. we are talking about internal skills, right.
I agree, the C2CC (you might want to tm that abbreviation Phi
) is not reliant on the physical set up you mention.
I suggest that it can be taken 1 step further than is being mentioned. C2CC is possible to achieve before any physical contact is made at all. Herein lies 'aiki' or my understanding of it at least. The hara/centre/dantien/onepoint is as much a mental concept as a physical one, C2CC is achieved as much with the mind as with the body.