Many words with that letter are spelled in modern dutch with "eu" or "ui" (but you will have no idea how to pronounce that).
How do you know?
I don´t think you are right.
Please name some words with that letter and see how those words have degenerated into modern languages.
Just listen to this video at 1:07 how "ü" is pronounced in german:
Pronounce Wr'alda. What would you say? Every word in the OLB that has the split U is w and is written as W or what looks like double V because that is what W originally was, it did not have the V sound however, as it was also written as double U. There is no W in the OLB alphabet for that reason, because the split U is W. Our English W has no hint of a V sound, that is just German accent.
Edited by The Puzzler, 20 October 2013 - 08:42 AM.