Thanks everyone for the info. I love this guitar and hope to get it back in tip top shape. I am a bluegrass crosspicker and flatpicker, and pretty much use all of the neck and strings in rapid procession. The sound of this guitar has always been thick and bright and not boomy like a martin which suites my particular playing need.

Don't want to have to lose this guitar to intonation issues, as it would be difficult for me to replace it.

I will look into all of the above recommendations with painstaking care, as I have already experienced many of the same issues that everyone here has already been discussing: mainly problems with dullness in the b-string, having to tune the low e string flat, and having to wait for the neck and strings to "settle in" to correct the intonation instability.

Many thanks, once again, to everyone of you, for you expert help and advice in hopefully getting my favorite guitar back into good sounding, as well as, good playing condition.