"Insight on the Scriptures" has completely replaced "Aid to Bible Understanding", which I remember even being ordered to be removed from one's library due to apostate influence found therein. In the article entitled JEHOVAH, under the heading "Correct Pronunciation of the Divine Name." it reads as follows:—
"Jehovah" is the best known English pronunciation of the divine name, although "Yahweh" is favored by most Hebrew scholars. The oldest Hebrew manuscripts present the name in the form of four consonants, commonly called the Tetragrammaton (from Greek te·tra-, meaning "four," and gram´ma, "letter"). These four letters (written from right to left) are [HFHI, I here substitute according to the actual evolution of the Roman letters] and may be transliterated into English as YHWH (or, JHVH).
The Hebrew consonants of the name are therefore known. The question is, Which vowels are to be combined with those consonants? Vowel points did not come into use in Hebrew until the second half of the first millenium C.E. (See HEBREW, II [Hebrew Alphabet and Script].) Furthermore, because of a religious superstitution that had begun centuries earlier, the vowel pointing found in Hebrew manuscripts does not provide the key for determining which vowels should appear in the divine name.
To me, this reference stands on its own merits, without further comment from me at this time.