Weird results with REW and phase

I've used Room EQ Wizard to make gated driver measurements for XO simulation (with acoustic timing reference enabled since I'm using a UMIK-1)

Using the old trick of measuring the drivers in parallel, I can find the woofer delay by adjusting Z-offset in VituixCAD until the responses match up.

Normally you would off course convert the responses to minimum phase when doing this. But here I only get the correct results when not converting to MP, and whats more, when converting to MP the responses will match up with woofer delay = 0.

In other words, completely backwards of what I would expect :scratch2:
 

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Converting to minimum phase removes the effect of any relative timing offset between the drivers since it discards any delays there are in the measurements.

Yes, that's why the above results should in theory be flipped. But they're not. Converting to MP should require setting woofer delay for the responses to match up. Not the other way around.
 
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