I have attempted this several times recently. In a nutshell, if I don’t sleep wearing a “chastity cup” I invariably wake-up with an erection and find myself touching and coddling my “package”. I can’t seem to stop it. I have even gone so far as to perform an edging session (yes–3 days in a row), sometimes with an ejaculation but mostly without. One recent edging session was with lube (something generally new to me) and it was mind-blowing. I almost felt like I had PE. The male urge for release is very strong, particularly when practicing semen retention. I find myself often within that 7-day peak testosterone period and that means that I can get greatly aroused at any time. So it is important for me to remain in chastity. I don’t rely on my CB-6000S recently; I’m taking a little break from chastity during the day.
The other thing that happens is that with a strong ejaculation, I will feel the after-effects of the “refractory period” which is almost the opposite of sexual arousal. It is a generally “down” period sexually where I have practically no interest in sex. But if I continue SR aiming for 10-12 days, I may suffer the effects of “blue-balls”. Bummer!
I am still swimming and find that I am wearing a swimmer’s jock almost all the time now. Even with a relatively tight suit, I find that the additional support it offers and the way it feels agrees with me. It is also arousing and that doesn’t hurt! So I’ll keep it up.