by some odd stroke, were you at a festival?
back to the query, harmalas have no negative tolerence effects to cacti, infact they may deepen the experience having recently done them.
acetic mescaline is great for the food safeness, but lets be honest. salting with 1.5-2% hcl and cleaning your product many times will probably be just as food safe as eating a gram of acetic acid with 100 mg of mescaline thrown in...
hcl>acetates due to the simplicity of cleaning and the awe of the product. ive taken 600 mg of mesc and at one point questioned if i was tripping, that was the last time i messed with acetates, just not a fine of product imho. if you could get your hands on some glacial acid id reconsider acetates, but for now, my hcl and dry acetone is the best trick in my book