Nice job on the LF driver round-over, and subsequent mounting...a lot of work and good result.
Any measurements you could eventually share would be greatly appreciated. Also, regarding the toe in, as Noah noted, it's all about inter-aural cross-correlation coefficient (IACC), and managing the energy off the near side-wall, and fostering the energy off the opposite rear side-wall. Image specificity w/envelopment, and spaciousness is the goal. Easier said than done, sure
. But it's all well understood and documented fully.
Your build is fantastic. Sweet, high output-low distortion designs is essentially a must for realistic playback. Optimizing such is key.