OzCub wrote:After a bit of housework and some surfing porn I felt a small burning at the back of scrotum so I rubbed a little more gun oil on the inside of the A-ring which resolved the matter more or less instantly.
Yep, keep it lubed up and you should be fine. Based on my experience, that's probably the start of your sack stretching a bit, though the plastic tends to grip pretty well.
OzCub wrote: At the suggestion of Thumper I selected a device that would not allow much room for growth and I’m really glad that I took his advice in this regard.
Glad to hear that!
OzCub wrote: It got quite the thrill out of other people walking past, completely oblivious to the serious hardware locked on my cock.
I remember that feeling well. It became especially acute when in the presence of attractive members of the opposite sex (though, of course, your milage *will* vary).
OzCub wrote:It’s frightening how natural this feels.
Eventually, you may only feel natural when it's there!