Thanks for the measurements, but as you've put them into individual files you lost the relative information between drivers, i.e. i cannot see at what level the drivers are at, and therefor not the acoustical crossover points.
You also didn't mention the crossovers, except for the slope, but not frequencies for low- and highpass.
When i just open the measurements without the information about the gain between drivers I see you have an acoustical crossover of about 125Hz, is that correct (probably not, but shows the problem)?
So please make measurements with the same volume on the headunit and within one mdat file, so we can directly see the acoustical crossover points in REW.
What is causing that spike in the midrange EQed responses around 35Hz? Have you loaded a calibration file?
When I simulate a LR24db crossover at 80Hz and 300Hz with my housecurve it looks like this compared to your drivers midbass.
So you're missing some volume between 60Hz and 120Hz. What is your midbass highpass set to? If it's set at 80Hz, then the slope is too steep for an acoustical LR24db alignment. Either try a lower frequency or a shallower slope like BW 12db and remeasure. Slope on the sub seems to be correct, but as said before, I cannot really see where you've set your acoustical crossover at.