Quote Originally Posted by lad578 View Post
My real desire is to go all the way to a Sierra-Nrt, but will kick myself if I come home to a ripped/broken driver.

Wonder how one would child-proof these gems
The grills on the CBM-170s/HTM-200s (with which I am familiar) take a really determined effort to remove. The Sierras look to use a similar, if not identical type of mounting system for their grills, although someone with first hand experience is welcome to correct me if I'm wrong.

I don't think you'd have a problem.