IMO...balance is something you need to be aware of, there is no written workout out there that will prevent it 100%. If you bench 300 and do DB rows with 25Lbs then you are out of balance . For myself I can do 5 sets of chest once a week and still BP 400, but I need to do twice as much work to keep my back as strong....Just be aware of your strengths and weaknesses and make it a point to try and even them out.

Yeah. If two opposing muscle groups are imbalanced, them emphasize the one that needs strengthening while merely maintaining the strength of the other muscle group by keeping loads static.