Finding the Right Size

Hi all. I just bought a CB6000s. I’m using the smallest ring paired with the second-smallest spacer, and it fits well, but the cage feels slightly large for my small member. Could anyone suggest a model that is smaller than the S size? While I appreciate being able to see inside through the plastic, I am considering switching to steel because I worry about snapping the pin on the CB6000s if necessary. Thanks, Sarah-J Edit: There’s another issue for me. When aroused, I find myself squishing out of the end hole:| a bit too much.