It seems to me clear that God doesn't come in parts. The argument to get there has been posted in this thread, and I saw no effort to contradict it.
If God does not come in parts,
If Jesus is God,
If Jesus is present in the Blessed Sacrament,
Then ALL of Jesus is present in each fragment, however small, of the sacrament.
IF! True
IF!
The chief benefit of the sacrament is participation in Jesus, all other "spiritual" benefits derive from that.
So someone who receives a very small bit or "only under one 'kind'" receives all the benefit he is capable of receiving from the Sacrament.
It would seem to be the VERY sort of legalism of which we are too often unjustly accused for us to insist on reception all the time in two kinds despite any difficulties and problems attendant on that insistence.
If trying to think coherently and clearly is a tradition of men, whose tradition is it to think incoherently and unclearly?
I dispensed with your "Sola" sidetrack because, somehow, I didn't believe you had me in mind.
As for my "legalistic" interpretation of Jesus words; yes, I take the words of Jesus "legastically" as opposed, for example, to Paul when he says "I say", "women should keep silence", etc. How you and I interpret those words of Jesus is another story.
For convenience sake may I imagine you supporting the complete change to the Lord's Prayer?