CB Range discussion

Greetings everyone, I’m new here. Sorry if this thread is in the wrong section. I bought a Cb-6000 fullsize unit several months ago and have used it a few times. However, when flaccid, it was incredibly easy to pull out. This disappointed me because I was eager to start using chastity. <—Single male age 21… Recently, I learned about the KSD-G3 and the smaller Cb6000 (Cb6000s), so I thought I’d try again and ordered both. Sadly, I can still pull out when flaccid:( I really want to wear chastity without having a PA (pullout accident), but I’m not sure what steps to take. Any advice would be much appreciated. Best regards. My measurements: 6cm long, 10cm circumference when flaccid: 14 cm long, 13cm circumference erect I am currently using the smallest spacer, the second-smallest ring, and the smallest ksd-g3 component.