When it comes to shrooms, I'll say it's good for lowering your self-consciousness and anxiety. They will, in fact, lower your stutter after a few trips. 2-3 grams is enough. I think im proof of that. However, what he did here was a very, very huge dose. He says somewhere between 0.5 ounces to 1 ounce. So 14g to 28g. Let's call it an even 20g. Enough to talk to God or the devil himself. I would not recommend taking even close to this amount. Something like this could make you lose your mind forever and end up in a permanent psychosis. This is rolling the dice with your life imo. You're either going to come out enlightened (and maybe still stutter) or be that crazy dude everyone knows around town as "Crazy Frank."