Curious about rings sizes for the two Chasity devices Holly Trainer Rings sizes compared to CB6000S Also I would think all rings are the same in the CB family if it's the CB6000 or 6000S or the 3000 Correct? Please get back to me as it is a important factor in my choices I have a knock off cheap CB6000 n wasn't sure if the ring sizes on the knock off are exact to the Original CB family. Thanks again for your help