A great detailed post as usual D&T.

Yes, I think the 7tps was meant as a technical maximum assuming 1 input and 2 outputs (1 to destination, and 1 back for change) for 225 bytes.

I agree 1MB blocks unnecessarily hinder Bitcoin, and although I don't see much difference in the potential for global value between 10tps and 20tps, seeing as VISA alone does 2,000 tps on average, I've revised my signature advertisement down from 7tps