To add to Violet's test, I tested the Wakacon Vanuatu today along with BKH Melo Melo and Boroguru.
I used 2 teaspoons of each kava and 75ml (instead of 25ml, didn't have a measuring device that small). Shook each of them for less than a minute and let them sit for around 3:30 hours for the first 2 pics.
^ Wakacon Vanuatu / BKH Melo Melo / BKH Boroguru
And another pic in the reverse order, to show background visibility and cloudiness:
^ BKH Boroguru / BKH Melo Melo / Wakacon Vanuatu
After 19 hours, overnight:
^ BKH Boroguru / BKH Melo Melo / Wakacon Vanuatu
Keep in mind that I used 75ml of acetone instead of 25ml, so the results will show roughly 3x less color.
The images may not be perfect (you can see the iPhone's "wide angle lens" at work), but from my own observations and these images:
1. It's obvious that I got the same batch of tudei "Vanuatu" kava from Wakacon.
2. Boroguru looks great. The images may not show it but it is very clear and golden.
3. Melo Melo seems questionable to me because of the cloudiness. It reminds me of Chris from GHK's kava tests with the 1/8 tudei spiked kava image. I am only critical because I continue to have kava hangovers despite not taking the Wakacon kava anymore. Maybe it is just me though. [edit: checking the results the next day, the cloudiness has lessened but is still present. It looks much closer to boroguru. Probably no need for concern.]
Anyway those were my results.