Genioplasty (chin surgery) in Korea - sliding vs implant?

I have a recessed chin that makes my profile look unbalanced. I am trying to decide between sliding genioplasty (where they cut and reposition the chin bone) and a chin implant. I know that Korean surgeons are experts in bone surgery, but I am wondering if an implant might be a simpler option with less recovery time. What are the pros and cons of each approach? I am particularly concerned about long-term results and potential complications. Has anyone had either procedure in Korea? Which would you recommend for someone who wants a moderate increase in chin projection?