Lines inspected, no kinks or reduced line diameter anywhere where I monkeyed with them. I did not chase all the lines to the end of their route however.

Rear channel isolated, noticeably reduced braking performance, but still unable to lock the fronts. De-isolated the rear channel, bled and back to the former situation.

The 3/32" smaller than stock bore diameter is all I can think of that *may* cause this symptom at this point. This will teach me to cheap out. Anyone need a new 1 1/32 MC? I may have one available

Any other thoughts on troubleshooting avenues guys, before I part with more cash?

PS, I just noticed I failed to cite the Ehrenberg Disk-O-Tech article a couple of posts back. I poached that text right from the MA website.