I agree with you about YHWH, but not YHVH, firstly(but would be interested in evidence otherwise).
Thanks for your research, have you checked out why PS 68 uses YAH, and that it is used extensively in may other names of great believers as part and parcel of glorifying YAH/Father/YHVH, and check out IsaiYAH(Isaiah) where YAHshua is called everlasting Father.
Divide scripture by scripture rightly, imo.
There is of course more to this all so lets appeal to Father, thank You Lord Father God(yes i know god as a word root is northern European for another deity, excuse me please Lord till all are educated who are able to understand English), YHVH/The great I AM, King of King Lord of lords and GOD of gods, amen YAHshua/Jesus.