Benelli breast lift revision surgery to correct stretching. What should be done differently?

You did not post photos, so I cannot be specific. However, the Benelli lift is limited in what it can do. When asked to do more than it is designed to do, sometimes the incision comes apart. You might need the vertical component. Please discuss this with your surgeon.

Dear Sensible57165,
Benellis lifts are always limiting. A vertical lollipop lift would have been my recommendation from the beginning, which should provide you with great results. I would stay away from anchor type pattern lifts (Old School Surgeon Technique) as they tend to flatten the breast and make a boxy appearance. Aggressive scar management would likely yield virtually invisible scars after the lift as well.
Daniel Barrett, MDCertified, American Board of Plastic SurgeryMember, American Society of Plastic SurgeryMember, American Society of Aesthetic Plastic Surgery

There is a lot of tension around the areola with a Benelli or periareolar mastopexy. Sometimes a revision works better as the skin has relaxed and there is less tension. Often it is necessary to convert to a standard mastopexy with a vertical and transverse incision.