It Fell Out Because of Poor Seating – Should I Be Concerned?

I’ve taken my Contender off just once since I started (what a wonderful night that was). When I put it back on, I suspect one of my testicles didn’t make it through the ring; it seems to have slipped back up inside me. By midday, it felt like the device was loosening up, so I checked and found my penis halfway out. It was easy enough to push the rest of the way in. Then, without much trouble, I managed to get that second testicle out as well. Removing it is quite straightforward. Aside from that single incident, though, I’ve worn it for three weeks straight with both balls firmly positioned through the base ring. Looking at it and tugging on it, there doesn’t seem any way it could come off. I’ve sprinted across streets multiple times, exercised, showered, and braved freezing temperatures (it recently snowed here), yet it stays snug in place throughout all of that. So, is this a situation where proper installation means it’s very secure with no worries? Or should I consider getting a smaller base ring (though I’m not sure if one would fit) or reducing the gap size (again, unsure if that’s feasible). For both the ring and the gap, there’s just enough room for one finger to slip in, but not quite up to the first knuckle.