Let's Balance Rods and Pistons

Is balancing the rods and pistons for a slant six necessary? For most people nope, and the engine doesn't really get over 5,000 rpm also. So why am I doing it... For one because I can. I also am doing it because it really does make the engine rum much smother. Which in turn will make the engine live longer since we are going to make 50% more power than this engine ever make. I hope this helps.