Hi. Thanks for the quick replies.
I just though of this: Cordoba C10 comes with high tension Savarez Corums on it. They recommend retaining this string in order to get the most response from the box. I instead changed to med-normal tension D'adds due to not so muscular fingers. BUT, I'm thinking now, maybe the norms don't have enough tension TO bow the neck or warrant T rod attention in order TO obtain the intended arch, and by default, action..
I think if I remember correctly that way back a few years I stayed with the Savs on it, but had sanded down the original saddle height..
So, perhaps with original set up (re-obtaining the original saddle height and going back to the intended strings will bear the need TO tighten the truss rod to where the action and relief are at proper specs; and that I naively corrupted all this back then...Yes/no ? M