Not sure what you mean here, but i have that same $125 headband on my pair...which I bought from @Pharmaboy .
The headband is wonderful in my honest opinion...does not touch any metal braces for me ?
Totally more comfy than stock...I will say I can get a hot spot after about 3 hours...but I move the headband about a half an inch and all is well again.
Not sure what you mean by touching metal braces ? I just checked my again and nothing is touching anything.
I never heard that pre-fazor LCD-3 with a big-time accuracy-centric SS amp like the GS-X Mk2. I'll bet that combination sounds amazing.