I asked this before but I didn't get an answer...
What is the difference in pronunciation between an "Omega" and an "Omicron"?
You are absolutely right. I apologize!
The "o" sound in "W" is a more "rounded" "o" sound than that in "O"
Its rather like the difference in the "o" sounds in "Oleo" and "Out", respectively.
Omicron is a short O and Omega is a long O.