CB Range discussion

Hello, I realize there’s already a thread on this topic, but I didn’t want to dig up those older discussions, so I’m creating a new one. We’re planning to purchase a CB6k-model, though we aren’t certain which specific version yet. For the past few weeks, I’ve been wearing a CB3000, and my glans hasn’t quite reached the end of it. When flaccid, it measures about 8.5cm (which is roughly 3.34 inches according to Google;) ) and I fall into the grower category. Does anyone with a similarly sized member have any suggestions? I really want to avoid wasting $100 by choosing incorrectly. Thank you beforehand.