On Mon, 14 Jan 2008 16:20:34 -0800 (PST), terry wrote:

I could have explained it a lot better with graphs but I dont think
you can do that on usenet.

I've been known to use graphics to ask questions here.. like this:

http://img.photobucket.com/albums/v1...ofileChart.jpg

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Oh, and this might interest you... as mentioned in an other post, the
algorithms to determine DA are not "fixed" they are a black art of sorts.
Here's a good example, two of the same model but different editions of an
electronic E6B with the same values entered yield two different answers for
DA & PA.

http://img.photobucket.com/albums/v1...SportysE6B.jpg

Go figure.
--
Dallas