Chastity device discussions and reviews discussion

Hello - I’m a newcomer but have dabbled in chastity off and on for quite a few years. I’ve tested the standard options: BON4 CB6000 Holytrainer I am searching for a steel device, preferably one with an open cage design. Ideally it features a hidden locking mechanism. I’d value input from anyone who has tried ‘bespoke’ gear instead of generic store-bought models - my budget goes up to £500.