Have you ever fired a revolver with a birds head grip? I’ve had several, and they tended to ride up and down in my hand as I shot them. A .22 revolver probably won’t present such an issue, but keep it in mind.
They seem to bring a premium price as well. Being the cheapskate that I am, I'll probably just pick up a Wrangler and call it good. It's gotta be better than a Heritage Rough Rider.