I plan on checking my BV450 along with my pack, poles, stove, etc.
From my experience with checked bags, TSA tends not to open things that seem to be too complicated to re-pack. They have generally left my bike boxes or backpacks alone, not that there is anything in them suspicous or prohibited to show up on the X-Ray, but I think they may not want the hassle.
OTOH, I did lose a ziploc bag containing my "girlie-undies" to a TSA inspection! A few years back I went to New Zealand and when I got my duffle bag, inside I found the nice note notifying me of the TSA inspection. Subsequently, I discovered my undies missing when I unpacked at my motel room. I was hoping that I had inadvertantly left them at home and that they simply failed to make it into my bag to begin with. No such luck. When I returned home, no bag! Apparently, they were snatched by TSA. Oh, the humanity!!
Somewhere out there is a randy TSA agent dancing around with my unmentionables on his head. If you see him, please tell him he's welcome to keep them.
Moral of the story, don't have backpacking equipment that looks like underwear, and you'll be fine.