Last night I had two tablespoons of GHK micronized Mahakea in 8oz of 2% milk. I didn't notice a difference last night, but DID seem to be feeling it this morning.
One thing I've noticed, is that using the same strain of kava over the course of several days, seems to lessen the effect. For awhile, Moi really did it for me. Then, it didn't seem to do as much. So I switched to another strain. It'd be awesome for awhile, but then seem to loose potency. Yet, Moi would hit me good if I hadn't been drinking it for awhile.
I have an Alubal that should be showing up in the mail today(fingers crossed,) so I'll be mixing up some KalmWithKava Loa Waka tonight. I suspect it'll hit hard for awhile, and then I'll have to switch strains. The key may be to keep several strains on hand, and mix it up with a rotating variety!