Just a follow up. OP mentioned getting a chin implant. Be careful to discuss this with the surgeon regarding the long term stability of this. I had a chin implant, a rather large one, and overtime it eroded the surface of the bone away where the implant met the bone, and recessed a notch into the chin bone approximately 1.5 to 2mm deep. It even appeared on my VSP planning with my prior BiMax surgery. A sliding Genio is much more stable and reliable.