What I was trying to get at in my post is that I don't see the point of taking an extract kit, which is a complete stand alone recipe meant to be made as-is, and trying to shoehorn it into some kind of partial mash just for the sake of avoiding an all-extract brew.
As for myself, I like to mix in a few extract w/grain kits now and then because they are high quality and fun and easy to do. I haven't done a side by side comparison of an AG to extract recipe, but someday maybe I will.
Oh, and Happy Birthday Revvy! You old dog!