I would also like to confirm the pronounciation.
I'm assuming the Y in Yvon is pronounced like the letter i in 'it'? So like 'Ie-von'? Yvon looks and sounds very similar to the female name Yvonne to me.
Yves looks cool. Do you pronounce it like 'Ives' or 'Eves'? Either way I prefer it to Yvon.