Now that is a smart idea ~ and just the kind of feedback I was looking for.
The two cats who live outside are strays who came to us and adopted us. They are but two in a series that have come to us. The others have either disappeared or met sad ends. They keep the barn free of rats and mice. Tom, a big, black panther-like beauty is a great ratter who regularly leaves us 'gifts' of rats and mice on the back patio.
We would NEVER put our house cats outside. If you love your cats, don't do it.