Kavan, with respect, I understand what you're saying about the the different bsso cut, though do we really know triaca or brusco wouldn't attempt a chinwing after someone has had a regular BSSO. I know Dr. Z refused a patient recently for this reason, but will all the other docs?
Also, do you think the reason you can't have an osteotomy if HA is applied to the area because the HA will crack up or dissipate once it's cut into? I clearly lack the brains to forsee what would happen. I mean if the HA is integrated and solidly on the bone, couldn't it just be cut through as normal bone would and moved? I'm thinking about how Gunson applies the HA to the bone and it integrates. Are you saying cutting and moving segments with HA would be problematic? And why?
I can't really predict what the other CW docs will or won't do. I just understand the reasoning behind WHY they prefer the mandibular border (that they need to cut through to do the chin wing) NOT be compromised by a prior (standard) BSSO cut.
If you want HA paste, get it as the LAST thing you do.
Other than that, all I can suggest is to consult with the doctors you will be needing to cut through your HA paste and standard BSSO AHEAD OF TIME and tell us what they tell you.
ETA:
For all intents and purposes, HA over an area to augment it, is pretty much an IMPLANT. It's an implant made with bone paste. So, if you are going to have it, have it as the LAST thing you do and not something you want the next doctor to cut through. So, this question resolves to; 'Why can't he cut through my HA IMPLANT?'
Ass backwards. Get your HA IMPLANTS after your bone cuts. Not before them.