Copied MS text to Acrobat X doesn't work.

All's I can say is- most things come down to Trial & Error & with any topic.  On the Acrobat X Program with the Original PDF text- the editing was very simple & successful because I soon got a handle on the Instructions.  I believe from what you wrote earlier is that you have not had any direct experience into this.  It may just take a little more time vs. originally putting the text in Microsoft Word format then converting the entire MS Word file over,but it certainly does not hurt to learn new things either.

When editing the Copied Text over- the end-results of the Editing Tools were not the same as with the Original PDF Text so it could be that the Copied Text is not compatible with the Adobe Acrobat X Editing tools.  Incidentally, I did obtain difficult & poor results from the Copied text, so without any third party attempting to Edit any previous Copied & Pasted MS Word Text in Adobe Acrobat X format, one cannot offer any accurate opinion.  At least that is the way I see this issue.