Sorry for all those looking for a Thesis on intinction. I am not going to be able to do that in the next hour or so but if you wait I'll get it to you
Suffice to say here is the gist:
The Lord's Supper is clearly two
separate acts with two
elements. The Body and The Blood. Intinction necessarily is a
singular act with two
elements. However this is not an argument based on the "amount" of each element but the separation of the elements into two acts is necessary.
In anecdotal side argument intinction is nothing more than in most cases a "pragmatic" solution to time issues not a theological one and pragmatism should never be a primary reason for anything done in Worship.