Gold or all items?

When I say that it had no effect it means something like this:

I kill 1000 of X monster and get 15 of Y item.

I use drop booster.

I kill 700 of X monster and get 11 of Y item.

Through several repetitions of the above cycle with various items, you can determine the boost. I determined the boost was +0%.

This was before G13 though, so they might have fixed it.

Well I need to do a more thorough example but I know that during the effects I got Dragon Tooth. Then when I used it again, AR 8 drop as well as FB 10 another. It was in the first run I ran when I was under its influence. I may have to run it again under its effects.