Chastity and orgasm denial discussion

Hi, I recently got my first chastity device: a CB6000. I’m very pleased with it; I put it on last night, slept in it, and was amazed because it felt like wearing nothing at all. I bought it for about 20£ on e-bay, so it might be a fake one but I don’t care—it’s great and I’m satisfied. Now, I’m beginning to learn how to live with it and faced the first problem this morning when I woke up: I felt pain right where my balls were in contact with the ring. The ring itself is large enough. It rather felt like a burn. Maybe it’s the friction of the ring on the balls which causes the pain? I had to remove the device because of that… Have you experienced that?