I'm having full trunk liposuction with fat transfer/grafting to my hips. Will my skin bounce back?

My surgeon doesn't want to go too flat on my stomach because he's afraid the skin might not bounce back as well. He examined my muscles and stated that they were still close. I was about 30 pounds lighter last year and my stomach looked amazing considering. Is it fair to assume if I went almost flat with the liposuction my skin would do the same as when I was thinner? I'm pretty conflicted. He says it might sag, but I know I want it to be flat. Other opinions would be nice. Thanks!