Best option to soften lines not improved by neck lift?

I routinely tell all my lift patients that horizontal lines are not eliminated by face/neck lift surgery. Pull vectors in the neck would need to be vertical, which can be done on the face but not on the mid to lower neck. If you have already tried fillers, fat will not help. The horizontal lines are created by dermal retractions, which is why surface treatments like laser will not work, and fillers cannot balloon out tissue lines that are adherent to deeper tissue. The primary way to break up these lines is by open surgical elevation, with the hope that they don't reform. Lipocannula dissection will not break these lines up. However, the open surgical elevation of the skin carries a risk of bleeding and a risk that the lines may recur, which is why most surgeons would not embark on this path.

These lines are difficult to remove as you have witnessed.
I am using a new treatment of ultra-micro fat injections combined with growth factors
Early results are looking promising