That's why I recently purchased the ZTR.....I have so many trees that the ROPS was an issue for me. Even so, I cannot even imagine rolling my BX when mowing. You guys must have some really "big" hills. Here in Kansas, we're pretty "flat".
Speaking of rolling over, how many of you guys have put a skid steer on it's back or top. Spend several thousand hours in one of those on hilly terrain, and you will develop an appreciation for balance, common sense, and safety devices. After that, the BX is a piece of cake.
Be Safe!