An old PD mod (PsychaStevic) did do a blind test, had his girlfriend randomize which he took, he even included ALD-52, LSD and 1p-LSD (also AL-LAD and ETH-LAD), and was right with each one. Of course it's just one data point. he wrote it all up in one long report with 5 mini-reports and the results of the blind test.
I can't find the report though, BL's search engine sucks big time since the software upgrade in 2019.
I would like to do a blind test experiment sometime but haven't ever gotten to it, as I don't trip super often these days and it's never conducive to that sort of thing when I do. But for the sake of science I will try to do that at some point in the future.