"Natural" Diuretics for Contest Prep?

[Fighting40]

What is your experience with the "natural" diuretics such as dandelion root, uva ursi, or the proprietary ones such as Watershed, Xpel, or Muscletech's new Diazyde?  How long before show do you start and what kind of dosages?  I know the prescription stuff is a lot stronger, but I have to stay in the "natural" arena for my Federation.  TIA!

[littleguns]

I have alsways used Dandelion root, like 3-4 caps every few hrs starting 2 days before a show.

I always but my water intake as well so between the Dandi and the low H2O intake I was pretty dry for a natty