So I went into my LBS to have that cog problem checked out. Unforetunetly we were all wrong. I did strip the hub. Luckily, its got two sides so the two and a half week old rear wheel is still operational. and now has a nifty new 17t dura ace cog... so i guess i'm a 48X17 now instead of the good old 48X16. I should have upgraded past the stock fuji cog. ended up paying for it in the end.