What's your one good mic? I'd say try to pick up as much of the kit as you can with that and then use the RS mics to fill in the sound. But good drum sounds can definitely be had with just one mic, a friend of mine does it all the time. You just have to spend some time placing the mic. It helps if you have some of the other instuments on tape so you can see how the drums are balanced in terms of the whole mix. If you're listening to the drums themselves, the kick can seem awfully loud, but as soon as you put bass, guitar, keys, etc it can disappear. And the other guys are right, well tuned drums in a good room (played well!) will sound OK no matter what you record 'em with.