I have wanted the clear bowl for my mixer for sometime.  I have questioned that it is the spout hitting the post of the mixer that stops it rather than the locking thread. After seeing the picture of the yellow mixer in this review thread, I realize the pour spout should stop a bit before hitting the back arm. I also noticed others have a base thread problem. My concern is hitting the spout just right and it breaking. I also hear it rattle against it as mixing is happening. I love the look and ability to see into the bowl. I also like having two mixing bowls often needed for some recipes.