I loved your information and is pretty much what I figured.
My Strong's Concordance shows is like this :owb, obe; from the same as 1 (appar. name); prop. a mumble, i.e. a water-skin (from its hollow sound); hence a necromancer (vertriloquist, as from a jar): bottle, familiar spirit
Of course you look at that and think, what the heck? We have a 'mumble', something that sounds like a hollow like from a water-skin, and that winds up meaning a necromancer : a bottle, a familiar spirit?
It is really not that hard to understand though. Saul was looking for what today we would call a medium or perhaps a witch. And the more modern translations (those done since 1901) have it as medium.
1 Sam 28:7 [NASB] The Saul said to his servants "Seek for me a woman who is a medium, that I may go to her and inquire."
So in the 1611 King James the Hebrew for what today we call a 'medium' was then called a woman with a familiar spirit. The Strong's general seems to go to the King James. I once saw a Concordance set to the NIV which also shows medium. I doubt it would show 'familiar spirit' tacked onto the end of owb.
Anyway, I liked your explanation which makes sense to me and is pretty much what I would figure. The problem with that think should be obvious for several reasons. First is that while the witch, medium, or necromancer may think a spirit serves them, it is more likely the opposite is occurring. The second, and what I believe people may miss, is that our Lord is King of kings and Lord of lords. The heavens and the earth are HIS!!!
So the woman who inquires for Saul starts seeking around in the spirit realm, and according to what is actually written in the Bible, Samuel shows up. The woman is thus startled and screams, because Samuel was not familiar to her. Then because of that she becomes aware the it is king Saul who had come to her. She put two and two together and figure that sense Samuel showed up, and Samuel was known to converse with the king, that man was king Saul. Samuel give accurate prophecy to Saul. Saul recognizes the accuracy of the prophecy and the prophet and the fear of God comes on him. But what amazes me in the story is how Saul acts.
Saul should have torn his clothes repented big time in sack cloth, and seriously been seeking the mercy of the Lord!!
Ps 78:34 When He killed them, then they sought Him, and returned and searched diligently for God
Why did God not speak to Saul, nor let other prophets speak words to Saul? Why did God have Samuel go and give a word concerning Saul's death to Saul? It seems to me that God was trying to get Saul to "searched diligently for God"! Yet how quickly does Saul turn to a witch, and even then Saul just folds over and dies instead of repenting in sake cloth and seeking the mercy of the Lord.
Ok, some others think God was so angry with Saul that He was still trying to get his attention, and that doesn't really match up with my understanding. And others, think it wasn't Samuel but some demonic spirit who spoke to Saul, but that is not actually what the Bible says, and I think it shows a poor understanding of God and the spirit realm. Yeah, you go to a medium or witch and you are not seeking God but any evil spirit, and you know it. And that is what you are going to get. But Saul was searching for God. He was doing it in all the wrong ways, but Saul wanted a word from God, but he hadn't repented. So the way I read it, He got a word from God but it was a deadly word. He needed to repent and start seeking the Lord in acceptable ways. He shouldn't have gone out into battle. God could change His mind.
He, king Saul, should have understood that God could change His mind. Remember how Saul got to king. Samuel told Saul some things and said they would happen in a few days, but God changed His mind and they all came to pass very quickly. So Saul had personally seen God change His mind, and that from something Samuel had said.
King Saul was a sad story that should have been anything but. The story serves as an example of the things not to do. But it also shows the power of God and His preeminence. God is in charge. He is in charge of all the heavens and the earth. God can shook a witch and take over quickly and fully in the spiritual realm. He can change kings, pronounce death, and can have mercy and change His mind because God is love and always has been. The question is; what is it going to take for us to seek the Lord in our lives and obey?