Damn - I bought my first set of Callaways from ebay - it was from Golftown thought, so no worries. I am looking for a set of X-20s and I came across this little disturbing tid bit of info.
eBay Canada Guides - COUNTERFEIT CALL...ONS from CHINA
Also, I have seen shows where the pros had a hard time discerning the difference between the fakes and authentic clubs - they ended up cutting the clubs open to show the difference.
Good luck - I hope you can turn this around!
jamesh