UPDATE: Victory!!!
I decided to take my 618 I to my local jeweler who happens to have big bunches of cash that used to belong to me. Somehow, my guitar purchases are always followed by a significant jewelry purchase. I think it is some sort of law of nature.
Anyway, we padded his work bench to the hilt. As I held the guitar, he was able to cut the remaining imbedded screw in half lengthwise and extract it piece by piece. We thought all he would need to do was cut in a slot in screw and unscrew it with a micro screw driver , but this didn't work. We eventually found out that the screw was slightly bent at the tip , so it was not going to be backed out ...no way - no how.
The two halves of the very tip of screw remained imbedded , but I was able to get these out by re-drilling the hole just a tiny bit deeper. Unfortunately, the screw hole was stripped of doing all this, so I did have to fill it and re-drill the hole, but that was not a big deal. A good quality wood filler from Ace and some ebony stain and I was good to go. I had called LMI shortly after all this happened and they shipped me a couple cosmo black screws at no charge for when I was ready to reinstall . The second time around all went without incident.... ... ... phew!
Now I have another issue with this guitar , but that's another story for another post.
Thanks for all your words of wisdom and encouragement
Steve