I don't think I ever reported back my experience, so here it is, later rather than never.
My friend D and I took 2.5 tabs (~375mcg) of LSZ each. It took a while to come up, about 2 hours before we started having interesting visuals. I smoked 5f-akb-48 during the trip, which considerably boosted the intensity of the visuals. It also prevented any come up poo, which I usually get when taking drugs. I got some vasoconstriction, which I wouldn't say was severe, but was unsettling at times. I think the cannabinoid helped alleviate it a little.
The visuals were not as strong as what I expected from this dose, but I feel the experience could have been affected by me eating food during the come up, despite having had breakfast just 2 hours before. My short term memory was appalling, so much so that I couldn't form a sentence that structurally made sense, because I'd forget everything that I'd just said. I think smoking made this even more pronounced, seeing as 5f-akb makes me feel stupified just by itself. I felt more aware of things that normally I would not waste time processing consciously - simple things, like noticing a plug socket and then having an in depth chain of thought about plugs.
Being in public was uncomfortable for me, and it was very obvious that I was tripping. There was a moment when I was walking the D back to the bus station and a police van drove past us and just stopped some short distance down the road, all as we were waiting to cross a busy road. My heart has never pounded so fast! I've never been arrested before and it's something I'm very paranoid about whenever I'm in public when I'm high.
So my final thought on this experience is that it was very similar to my experience on LSD in terms of altered consciousness, but the visuals were not as crazy as I would've hoped for. I've had stronger visuals from 2mg 25B-NBOMe. I'm deffo gonna try AL-LAD next, it seems to have a stronger visual component to the trip.