Difficulties with wearing a device? discussion

I first started with a CB2000 when it first came on the market back in 2002 (it came from a reliable store in North London can’t remember the name through it had High fashion Latex designer factory next door). I tried to wear this new CB2000 but it started to cut or create a nasty open wound in my ball sack, so had to stop wearing. I didn’t try again until 2013 because I got put off by that bad experience. I tried many devices, some fake Chinese device, to several proper device from Holy Trainer and others, but sadly they all caused the same problem I experienced in 2002, but I was more aware to allow things to get seriously bad, Again I gave up. I always wonder how others get on wearing these devices? I now wear a chastity belt, than a Device.