Thanks very much - I was doing something different before.
OK - so I used an offset on the full range curve to try and get it about matched to my full range measurement. Then I uploaded the 3 individual house curves and applied the same offset. Slightly confused by the db figures that REW adds to the names of each overlay, but seems to look OK.
Does this look about right then as a starting point to figure out what changes I need to make to my DSP crossover settings?
BTW - My measurements were using the REW pink noise PN generator averaging around my head. May try other more time-consuming approaches later, but want to just do a first pass to see if I'm understanding things.
Also - there is TA applied already based on just entering measurements to drivers into my Bit Ten.
If I'm reading this right it looks like my sub crossover is about right. Looks like I need to move the mid-range low pass higher and tweeter high pass lower?
Should I do this with no TA also?
Are you using 12 and 24 dB slopes on your midbass?
Spatial averaging measurements are fine. Keep doing that.
Measure post time alignment.