Also,
please verify the gaps on your ab / kidney connection
Any gap between the abdomen and kidney armor is no more than 1/2" (12.5mm) wide.
Any shims used to achieve this effect are of a similar material and color as the abdomen and kidney armor. Shims fit flush and seams are allowed.
It could just be the picture, but the gap looking a bit larger than that; you may need to tighten the belt or create the shims.