Wooden props are NOT a "decline in manufacturing standards". There are several advantages with wooden props.
FYI, the wooden prop on the USAFM FW-190D is the wrong prop. It's from a Ju-88, it's too big in diameter.
This may answer alot of your questions,
http://www.steenaero.com/Products/pr...rintFriendly=1
Regards,
Mike