thank you for your time replying.

I am well aware of your "released" MathCad worksheets. I am also familiar with EDGE, but I am unaware of its ability to model other than a flat baffle. If you understand, how to do that, could you please give me a hint?

I am wondering if I could be your "guinea pig" for your diffraction solution, either by letting me have the MathCad worksheets or calculate a solution for me, which I would reciprocate by providing you with measurements.

If my suggestion is unreasonable, please cheerfully ignore it. As an Intellectual Property practitioner, I understand your ownership concerns; otherwise, please contact me at mefistofelez_at_hotmail_dot_com.

Thank you,

M