I have tried different rings ( I have quite a collection as I love the feeling of jerking off, edging and sex with a cock ring on) and for the last week have been wearing the one thats most comfortable. I wear it after my jelqing and short pump session in the morning. Keep it on for an hour, then off for a few jelqs and stretches- repeat! I have found my cocks girth grows throughout the day, and stays at around 6 1/2 inches for most of the day. EQ is still good and the head of my cock becomes sensitive which makes sex and orgasms amazing. I am cut so this has been a real benefit. I cannot say that this is just because of the cock ring as I am doing jelqs and pumping as well so difficult to determine the cause. What I will say is that my experience has been very positive and I will continue with the cock ring for at least another 3 months before measuring. Make sure you get the right ring - it has to allow blood in and must feel comfortable for you. I no longer get cold spots, but instead my cock feels nice and warm.