So to get metallic gold dye as a gathering class, you have to have 383 gathering right and do quick exploration?

I've been trying for days and the only thing I've gotten is fish hah. I do get the rare message but the way its explained it seems that its hinting that I need to have even better gear to get rare drops.

I'd like some clarification:

* 383 gathering?
* Use quick exploration?

What is the estimated drop rate for the dyes?