Enoughisenough, here is another set of videos for you to peruse. A Kairite Jew, Nehemiah Gordon, actually endorses the pronunciation "Jehuwah." Interestingly, he found the pronunciation in over a thousand MSS.
https://www.youtube.com/watch?v=4vgXMmBst8w
https://www.youtube.com/watch?v=DA3VKpVP17U&t=439s
But what should be kept in mind:
1) The different vocalization systems are not that old, dating from about 600-800 CE, although they are based on a much older oral tradition.
2) Then there is the Albright-Reisel Hypothesis that suggests that the current pronunciations are all based on either North or South Israelite pronunciation:
Prof. William Foxwell Albright viewed Greek Iaō as a transliteration of the South Israelite (Judahite) Yáhû. According to him, *Yēhou, transliterated by means of Greek Ieû, originated with North Israelite usage. In his book "Yahweh and the Gods of Canaan A Historical Analysis of Two Contrasting Faiths," he quotes the writings of historians to support his hypothesis. E.g. Porphyry mentioned in his writings that Sanchuniathon had compiled a history of the Jews from information received from a priest of the God Ieû, the latter being North Israelite pronunciation of the South Israelite Yáhû (Iaō in Greek).1
Post-exilic times would herald a change. Dr. M. Reisel, pursuing a different line of reasoning, concluded that the “cultic vocalisation of the Tetragrammaton must originally have been YeHuàH or YaHuàH”.2 This would especially have been the case during post-exilic temple worship. Reisel’s conclusion anticipates the outcome of Albright’s hypothesis, hence the name Albright-Reisel Hypothesis.3
1. W. F. Albright, Yahweh and the Gods of Canaan A Historical Analysis of Two Contrasting Faiths, pp. 262, 263, footnote 155.
2. M. Reisel, The Mysterious Name of Y.H.W.H., pp. 40, 41, 74.
3. S. Ortlepp, The Pronunciation of the Tetragrammaton from a Historico-linguistic Perspective, p. 5.