IIRC Prior to your first surgery, you were deciding between Dr.Sinn and Dr.Gunson after a consultation with both. What stopped you going through with, Dr.Gunson?
Personally, I would be extremely hesistant to go through surgery for a second time if you have no functional problems, the amount of financial, emotional and physical cost associated with JS just isn't worth it.
As for mandible expansion, I would be extremely reluctant to believe what the Dr. says, until he gives you firsthand evidence of the number he performs a year, the previous patients who have had it done, as well as possibly being given their contact details to connect with them and ask them about the surgery. From what I've heard even Stanford surgeons who are experts in sleep medicine are extremely unlikely to recommend or proceed with mandible widening osteotomy as it's not 'stable'.
Dr.Gunson definitely does segmental lefort to widen the maxilla, don't know the movements he can get, but from the various post by people who have undergone surgery with him, none have complained about 'stability' issues. Due to the vast amount of people who post online, who have undergone surgery with him compared to other surgeons, I think we would have heard about it by now had their been 'stability' issues.
I would consult with Dr.Gunson, again. Raise your concerns with him and then take it from there, as you had a consultation with him they probably still have your record, giving you a breakdown of your pre and post movements of your first surgery, and what can be achieved.
As for expense, I wouldn't think twice about if it's affordable, this surgery will most definitely cost me an arm and a leg, but it's worth it for the peace of mind knowing I put my face and well being in the most reputable of hands. I don't want to be a revision case and it's worth paying the extra to hopefully get it right the first time.
Gunson is heralded as a top surgeon yet main drawback...long wait time for surgery.
Oh, God. How 'long' are we talking? His consultation waiting list has already made me wait over half a year. Then comes the likely 6-8 month wait for orthodontist to get the bite right for surgery.