Yeah, that's what I call "misapplied theory". Coil geometry dictates the null line. So a null is where it is, not where somebody says it is. I measured mine with a protractor. I really doubt is was by chance that it ended up 45 degrees from the center of the coil. So I will concede that your coil is "different". But looking at the diagram of the enclosure (sorry, don't have the figure number handy) it sure looks like it is 45 degrees off the center. So, whatever. I'm over it.
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