I've tried this a number of times, and I agree with the rest--it's not likely you're going to stop the cracking.
I've pondered the next time I do this, I might put a preemptive saw cut on a radius to the center. This might make it more likely that I'll at least only have a single crack, and I get to pick where it is. Then I could turn the crack into a feature like Daren did, or in some other way.
I've thought about cleaning straightening up the crack into a nice "V" (after drying), and filling it with a contrasting wood. It's on the list of things to try.
For just a little more, you can do it yourself.