Tummy Tuck Revision: Cause and Strategy - best options to correct mild upper abdominal laxity and a shelf area? (Photos)

I had a tummy tuck with muscle repair and breast augmentation on 10/31/25 and am just under 6 months post-op. Pre-op, I had a relatively flat abdomen with some mild upper abdominal laxity. Post-op, this upper laxity has not been fully corrected and is still present. Since ~2 weeks post-op, I developed a firm, shelf-like area in the lower abdomen extending upward from the incision. This has remained consistent and is ~1–1.5” in projection compared to my baseline. At my 6-month follow-up, my surgeon attributed this to abdominal wall laxity and recommended a plication revision. He did not feel this was fibrosis, tethering, or a contour issue, and stated the upper laxity would not be addressed. He is open to scheduling revision as early as June. My concern is that this appears as a localized, firm projection rather than a uniform abdominal protrusion, and that the outcome reflects both incomplete correction of upper laxity and a new lower contour change. Given the option to revise soon, I’m seeking general opinions now before proceeding. Is this consistent with abdominal wall laxity alone? Could surface-level factors (tension/scar tissue) contribute? Would muscle-only revision fully address this? Options for upper abdominal laxity?