Well, I am an old man, but I still learn something everyday it seems. Frustration got the best of me, so I took the MC back off the vehicle to see if it was working as designed. It was, so while I had it off I found that there was no pressure when pushing the rod in by hand! So, I went ahead & did the usual bench bleed of the MC. Reinstalled it, re-bled the system & it seems to be working fine now. I was under the impression that reverse bleeding (from the wheels up to the MC would fill the entire system from the bottom up & forcing any trapped air up & out. Well, it does a good job on the lines, but apparently doesn't fill up the MC very well. Guess there is something to be said for the old ways of doing things. Hope this helps the next person trying to reverse bleed a system. ALWAYS, bench bleed your MC before installing it on the vehicle & bleeding the lines!