Let's see hands raised by all those people who wish they had such "major" problems to lose sleep over.
What is wrong with you?
If you got nothing constructive to say, help yourself out. This is a $6000 lens, after my car and the house, it's probably the single most expensive item I have ever owned, I have every right to be concerned especially after box it came with was almost destroyed.
Let me repeat again, as you don't seem to understand plain English, I am worried that the lens was damaged during shipment and the louder IS noise is due to something being wrong with the lens. There are owners of this lens who commented here saying the noise is not normal (and then obviously there are some who said it is normal). I have a very small window to return this lens and as it is a very expensive lens, I have to be 110% sure that it is broken before I return it. It's not like I can just return it "just to be sure". Amazon had 1 in stock for close to 2 months now. I wouldn't be surprised if they sell 1-2 units every few months.
It's hard to understand some people, please leave this thread alone as you have nothing constructive to add.