Generally speaking, the tummy tuck operation provides for a more aesthetically pleasing outcome than a panniculectomy operation. The tummy tuck operation is best done once you have reached your long-term stable weight. In my practice, I would offer you the panniculectomy operation at any point, if you have reached a plateau with your diet and exercise program, and simply wish to have the lower abdominal wall skin/adipose tissue removed. Keep in mind, that patients who undergo surgery when they are overweight, are exposed to greater risks. My best suggestion: seek consultation with board-certified plastic surgeons who can demonstrate significant experience achieving the types of outcomes you will be pleased with. Then, learn about options, and the pros/cons/risks/complications associated with each option. You may find the attached link, dedicated to patients who have experienced significant weight loss, helpful to you as you learn more. Best wishes.