Will a second fat graft after gynecomastia surgery improve contour irregularities and have a better survival rate?

I had some fat grafting done behind both areolas to correct contour irregularities after gynecomastia surgery. One side looks exactly like I’d hoped; the other side lost more fat and doesn’t quite match the other one. Does a second round of fat grafting to the same area tend to be more successful because there’s already some fat in place? Is that a thing? Or is this just wishful/hopeful thinking on my part? I’m hoping to have a little more fat grafted to the deficient side soon.