it depends some folks react good to them some bad its a crap shoot dude but if you are going to be doing any out door art work you might want to do it on the ground the first few times till your used to it.. balance can be an issue while on shrooms and lsd over the yrs ive seen many a dumb ass try and climb somthing on acid and wind up flat on thier back with the wind knocked of them be careful and happy trails