Ok, I've done it and not happy with the results.
Emotionally it was a bit difficult at times, I felt like balancing on something without intentionally balancing, it was just happening by itself. I had a feeling in my chest, that felt like it's in the prison of my body and it wants to pop out but not able to. All this with a nice amout of euphoria in the first few hours and being chatty and dancing to music in my mate's flat. There was no flow that I could have ridden, no insight and only a few OEVs after trying to kickstart them with a joint at T+3.00. Nothing significant, pale fractals on the ceiling and some color shift. Actually there was a good one, a panoramic picture of Sidney on the wall began to move like It was some holographic stuff. Music was really enjoyable though, especially 90's psytrance made for acid: Astral Projection, Man With No Name, Hallucinogen.
I got tired and lied down at T+6.00 and fell asleep round T+7.00 which was unexpected.
After a long sleep I feel unmotivated and empty somewhat.
I believe it could have been a different experience had I been alone and not trying to keep myself social but I just couldn't make the acid take over my mind however I tried. I believe it wasn't that strong after all. More sources confirmed it being a strong blotter (~300-350mcg) and I decided to take 1/3rd of it. It might have been degraded because lack of proper storage, I don't know. It's glowing bright under UV though (the back side only) and had no taste. So that's that. I still have the other, bigger half which I'll take as it is, roughly twice as much as I had the day before and we'll see.