the descision was made to "properly learn" to read notes ... Does anyone have tips / methods or any sound advice on this matter?
I so often see many people claim:
The only way to get good at sight reading music is to read it.
I believe that is really far from the complete truth - it is only one side of the coin.
How did you learn to read the words of books in school ? By only reading ?
Of course not. We learned by both, reading and writing
If you want to dramatically speed up the process, and develop great skills in reading sheet music, then get a blank sheet of music with the staff only, and grab a pencil, and start ‘writing’ your own notes - your own rests - your own strings - your own positions - your own fingerings. Develop your own sight reading studies. Write out different combinations of notes (eighth, sixteenth, triplets). Write a note and be sure that you understand where it is at on the neck of the guitar - then write another note and ask yourself, where is this note in relation to the note that I wrote before ? When writing notes - say what the note is with your mouth - think where it can be on the fret board.
Lots of composers are great music sight readers - one of the main reasons for that is because they write alot. I see so many people claim that they devote some practice time to sight reading. I suggest that it is much much more productive in a lesser amount of time to greatly improve music reading skills by music writing. A few minutes a day will take you very far in a short time. The small amount of effort and time that you invest in writing music will pay back great rewards in reading music.