CB Range discussion

I’m around 4 inches long and 1.5 inches thick when flaccid, based on several measurements taken at various times. People suggest deducting half an inch for the cage’s length though. I’d prefer to go with the CB6000 (3.25” x 1 3/8”) because it looks more discreet, but I’m not sure if that will actually work (?). The Curve (3.75” x 1.5”) feels a bit less subtle and I worry about visible bulging.. any solutions or experiences you can share?