incidently. the worry about "high doses" of acid or mushrooms isnt an issue. they SHOULD be taken in high doses. thats the whole point, same with DMT.
where the "BAD TRIPS" enter the equation is bad preparation in the place you do it, the people you are with, and your state of mind that day.
2ce, 2cp etc are all fine, but are (i know many who aint tried the above in the right dosages are gonna hate me for saying this) just toys compared to those above classic psychedelics. for real. fractyls are fine, but they are pretty confectionary compared to dmt, lsd, and large clean mushroom hits. though mushroom visuals dont always happen even on large doses. i think there are many variables with shrooms that way, your brain chemistry of the day, how you are "spiritually" that day, local mushroom species variations etc.