I think your projection is fine. As for your chin, I have a similar problem when I smile my chin seems to get wider. I think its the muscles as Vic pointed out. Maybe Botox to help relax muscles would help, but I dont know how it would affect smiling. Also Botox is expensive since you have to keep getting it to maintain results. A genioplasty might help if its a bone issue, but if its soft tissue I dont know. Maybe you should consult a PS? Im hoping that my Lefort 1 will help solve my issue with my chin but now I dont think it will. Im not too worried with it, I think that no one really notices it as much as I do. Im just worried that after jaw surgery is done Im going to focus more on my other flaws and want to get them fixed as well. Seems like everyone on this board is obsessed with perfection (so am I) lol.