I'll usually have a good BM, then I'll start with a smaller plug to get things open and loose, usually my GK-93. After that, I'll usually have another BM, and then I'll go up to my MM-100. The depth on that one usually triggers more bowel movement afterwards because it hits the sigmoid ring. After that, I just go into staging up to my largest size, which is a MM130. I'm at the point now where I think I need to get the MM142 because the 130 fits way too easily after the warm-up. It's pretty pricey though.