The best trip I had that helped with not only my stutter but changed my life for the better was on 4.5 grams of Penis Envy. It was a beautiful trip too cause it was on Christmas so all the decorations it felt like I was in a fairytale. It was like my third time tripping at the time but wow was it intense. Especially when I closed my eyes. But remember that with every shroom, the potency varies.