Don't know if anyone else has played around with this combo. On saturday I ate around 800 mics of acid, had a good time. The day after so much acid is usually a washout for me - whatever drug I take isn't quite the same, certainly most psychedelics. However, on the spur of the moment on sunday morning I dropped 4 blotters more and perhaps 10 minutes after that a small (for me) amount of 4-aco-dmt. To my surprise, the 4aco came on hard and heavy. I went out walking for about 6 miles because every tree I walked past was quivering with life and comforting me in my sorrow. Very surprising - I would've thought with the stranglehold acid puts on your receptors ("put a chokehold on the motherfucker" as Denzil would say) 4aco would be struggling to fit in anywhere.