I know how to UTFSE but I don't know what to ask and would just like to make a definitive thread on this issue. I hear a lot about impure LSD giving you bad trips, neck pain yadi yada.... And in the same post someone will state that only lsd is potent enough to be put on blotter (and PEA's... but for this thread we will discuss LSD singularly). So, even if Strychnine was on a blotter with LSD, and it was pure, and no LSD was on the blotter, It would still have to be heavily ladened with it to kill someone. So what turns impure LSD a bad trip beside irritation from being screwed? This doesn't make sense to me. How would 500ug of super impure LSD be any different than 100ug of VERY pure LSD?