Well,,,,,,,,,,,,,,,, the answer to your question is "NO", it's not correct. If you do lower your bike you are probably much better off to lower it the same on both ends. The lower center of gravity has little effect - if any - on the handling characteristics. What gives the lowered bike ill handling manners is altering the Geometry. You cannot lower your bike without altering the geometry.
Less clearance in the corners is the first thing most guys have in mind when lowering their busa. If you are a straight line man, the only thing you need worry about are speed bumps in the parking lot.
However, if you enjoy the twisties, lowering creates barriers in which you cannot correct and it will limit your ability to improve your skills. As you lower your bike it changes the geometry and the sweet cornering manners of your stock suspension suddenly become a deamon you must wrestle through the corners. If you are a simple man who's happy to coast through the corners with the foot peg dragging at 30 degrees, waiting until the bike is straight up and down on corner exits before applying throttle, you'll be happy. If you try riding that puppy hard in the corners it will put the fear of God in you!
It's a decision only YOU can make. Do you want it to look cool while it's parked at Starbucks or do you want it to perform when you crack the throttle? No matter what your intended use of the bike is, suspension it the most important element of the bike. Make your choices wisely.