Kirt:
> Salivating is easy, but I don't notice any tingling. I do know that if I
> eat too early in the day (before 10 or 11am if I'm up at, say, 6am), even
> fruit will seem heavy and sluggish.

I must admit that my experimenting with this comes following what I read
in Krok's articles Tom posted, but it does seem to be the ideal scenerio.
I wonder, do you always bother eliminating before you eat?  Perhaps the
heavy feeling would not be there then.