I've noticed the afterglow on 1p-lsd much more than al-lad - even 5-6 days later i was still grinning and noticing beauty and joy more than usual (could have been other factors). 1 tab (100ug) seem about euqivalent in strength as 1/2 of the first ganeshas that came about (96-97?) that were supposedly 200ug - the trip was different, but i was a different person 20 years ago - my trips these days are a lot less chaotic generally (and much less anxiety about personality).
^ A lot of the mushrooms you see on lawns and playing fields are actually 'Mowers Mushroom' not liberty caps (similar but the cap doesn't curl under like liberty caps and the nipple's less pointy) - i think they can sometimes have small amounts of psilocybin, but often have none (the ones i ate had none, just resulted in a rumbly tummy). I like mushrooms, but i find higher, ego-loss doses tend to be more traumatic personal and emotional than lsd (whereas lsd is more sinister/trickster/insane/funhouse-feeling) - this might just be association because my first ego loss trips were all on mushies (13 on), by the time i took lsd i'd probably learned to navigate a bit. Saying that, the 'trauma' is more than paid for by the euphoria of the comedown/return of the ego i suppose (but it still makes me hesitate a bit)