Not my bars. I just picked these up about a week ago. They're NJS Nitto B-123 drops. I got the same annoying clicking sound with my last stem.
So, it could be something else.. But I don't understand where the clicking noise could be coming from just from riding standing and/or using the drops.
See in the closeup picture how there is a little bit of extra space between the bars and stem? Is that normal? I just really don't want to go in and return them if they're fine. I work tonight at 11 which means I'll be riding my bike in the rain for 5 hours. Just wanna figure this out before I void my return...

Thanks guys.