Very well done. I'll try to draft something on volumetric dosing and send it to you for inclusion.
Regarding the current price on the Gemini's, that's just Amazon's wonderful adaptive pricing algorithm. As you note, these should be $30. The price will go back down when demand goes down. In the interim, these (and all of the other brands of this model) do a great job:
https://www.amazon.com/dp/B075Q44TC9/ref=cm_sw_r_cp_apa_i_DAqyFbH2YNZ6Q
anywhere from 2-5 grams. Measure by weight not volume. Order a scale on amazon or grab one from a smoke shop, they're worth every penny.
i've got one of these. Prefer having the milligram accuracy
I rip bits apart with my fingers the best I can, then I use the digger on the cap like a little knife to chop the rest inside this little plastic bowl I got with a cheap scale from amazon, after which I suck it up with my magic weed straw and flame on! 🚀
I got this one from Amazon for under $20. It’s more accurate than I need, but I liked the little pan it came with for filling my pax 3.
Zilink Digital Milligram Pocket... https://www.amazon.com/dp/B075Q44TC9?ref=ppx_pop_mob_ap_share
Maybe? Nothing in your pic shows the scale of things. Get a miligram scale, $20 on amazon.
A zilink Digital Mg scale. A cheap on bought from amazon.
Here's the scale I have, it works pretty well although if I were to do it again, I'd probably get one of the ones off this link.
Volumetric Dosing is basically dissolving a known amount of a drug into a known amount of a solvent for easier dosing of small amounts. For example, without some finagling, my scale won't even register an amount lower than about 15mg. If I were to do some 3-MeO-PCE, I wouldn't even be able to weigh out anything lower than a monster dose (which would be highly unsafe with PCP analogues). To get around this, I could dissolve 20-25mg (which I can do accurately every time) and dissolve it in 20-25mL of solvent (most likely Everclear) so that 1mL of liquid contains one mg of PCE. You can also do this with friendlier drugs, such as making a solution for a nasal spray bottle that delivers your sweet spot dose of 2C-B with one pump. There's a bit more to it but that's the basic idea.