Mo'I from GHK, pouni ono from KWK, the 11yr waka from BHK is pretty heady but to some it can be heavy in higher dosages so that ones a hit/miss if you want strictly heady.
Oddly, Kava Supreme is heady for me and it's supposed to be heavy but I'm weird I guess. Puoni Ono is nice because it's heady but not too much. I would be anxious if it was more heady.
I get really nice heady effects consistently from most all Tongan kava I’ve tried. The most recent Kavified Tongan is nice and heady. I can drink it for hours and never get too drowsy.
Oddly, Kava Supreme is heady for me and it's supposed to be heavy but I'm weird I guess. Puoni Ono is nice because it's heady but not too much. I would be anxious if it was more heady.
I just tried a new Kava but it is only available in the US. It is extremely HEADY. Its now my goto for daytime kava. I tried both the Micronized and Traditional versions. Both strong. But now I mostly use the Micronized version, seems slightly stronger. Initial buzz is from 1-3 hours depending on your fast. Then focused and motivated the rest of the day, followed with some of the best sleep. No hangover at all. Found it on Amazon and they have a site at www.tuikava.us Looks like they are new to the market. I have noticed that even many of the better brands quality has dropped over the past several year.