Chastity and orgasm denial discussion

Hi everyone. I’ve recently started with chastity and purchased my first device from eBay. You can view the item here: (links aren’t working yet). There are two issues I’m facing. First, after a hot shower leaves me relaxed and flexible, my penis slips out of the cage (I measure about an inch when soft). Second, while aroused and erect, I can shift the device enough to reach orgasm due to the stimulation. I believe getting a smaller base ring will fix both problems. Right now I’m using a 1.5-inch ring, so perhaps one that’s 1.25 inches or even an inch would do the trick. The catch is that this affordable cage seems to be mass-produced in only three standard sizes, and parts are hard to come by anywhere. I hope someone here knows where I can source replacement parts. Purchasing a pricey custom-made unit isn’t feasible for me right now given my modest (or average) income. I’m currently bidding on a CB6000 because it sometimes works better with metal detectors, and also hoping that an established brand name might offer a superior fit. Thanks in advance for any assistance you can provide. Michael