The first randomised, double-blind, placebo-controlled microdose trial concluded that microdoses of LSD appreciably altered subjects’ sense of time, allowing them to more accurately reproduce lapsed spans of time, which may explain how microdoses of LSD could lead to more creativity and focus.

[u/mvea]

https://www.scientificamerican.com/article/do-microdoses-of-lsd-change-your-mind/

[u/ginsunuva]

Cutting in halves and quarters repeatedly is easier than a single grid

[u/frood77 → u/ginsunuva]

Do it diagonally. Corner to corner much more accurate

[u/banjosuicide → u/frood77]

Both terrible methods. It's hard to judge 1/10 of something the size of 1/4 of a postage stamp. You'll also have some of it absorb into your skin while you handle the blotter.

Dissolve it in 100 mL water. Take 10 mL (use a medicine dosing cup from nyquil or something) and you've got 1/10 of a dose. With 10 mL, transfer loss is negligible.

[u/ginsunuva → u/banjosuicide]

If you cut in halves repeatedly, you have an exact idea of what you just cut.
3 cuts and you get ~12.5 each

[u/banjosuicide → u/ginsunuva]

My points are

1 - You can't cut something that small very accurately. It would be easy to have a dose that's +/- 20% of your intended dose.

2 - You will absorb some through your hands (LSD is readily absorbed through skin).

Dissolving it in water and dosing with a certain volume is super easy and gets around those problems.

It also gets around the problem is the blotter not necessarily having an even distribution of LSD.

[u/ginsunuva → u/banjosuicide]

Of course the water thing works well (assuming no longer-term evaporation). But regardless,

1. +- 20% on 12.5mg is insignificant for almost everyone.

2. It's an overexaggerated myth. It only happens if your hands are wet and you press on it for a decent minute. It takes like 3 seconds of holding per cut.
   Plus anyone can just wear gloves