Spyke, I missed this post, I cross my tweeters at 5K with 6 db slope on both.
The midbass is cut off at 2K 6 db slope on driver side, 12 db slope on passenger side.
TA between tweeter and woofer is set by playing a tone in the middle. Tweeter temporarily in reverse polarity, looking for the lowest dip at that tone. Reverse back to normal and play with tweeters only to confirm.
So, mayor underlap .
The different slope is to compensate the off axis differences. Less EQ needed this way.