Dear Dan,
You are probably more right than you know. You would be interested in my note about this as to how I became converted from "knowing" that aspartame is OK to understanding why it likely is NOT (even traces for some people).
If it is not easy for you to find in the aspartame "string", address a note to my son, Bill, the computer genius that administers this 'site. Put his name in the title to attract his attention.
Thanks for the note.
Walt