I’ve been wearing my JailBird around the clock for over a month, with just weekly releases for sex. I decided to try out the double base ring that came with it this time. It is much more comfortable! The single ring wasn’t bothering me generally, but sitting for long periods could be uncomfortable. I also notice the double ring’s presence a bit more, which I appreciate.
I had set the double ring aside before because the hole was really tight for the lock that came with it. However, after switching to a plastic-coated Master Lock (which solved the issue of sharp edges poking me), the fit is just slightly looser and works perfectly in the double ring without being so loose that twisting occurs. I am certain MM could have adjusted the hole if needed, but leaving it as-is has worked great.