It seems like that would be very hard to get a consistent dose with such a small amount. Those cuts would need to be extremely precise. It would be more reliable to buy the 1mg children’s dose and cut them in half.
I did this too. Someone had told me at one point the best thing to do to ingest it is to crush it somehow and keep it under your tongue for 30 seconds. And I also knew I wanted very small amounts of the pills I had. So I would take the tiniest nibbles of the chalky pills and leave them in my mouth for a while, until I could feel the effects slightly come on. Grew weirdly fond of the taste.