So - it would seem that the proven tiltrotor format of the Valor (notwithstanding a static rather than rotating nacelle) appears to be a lot lower risk than the S-97?
With admittedly no expertise whatsoever in this area - the Valor intuitively `looks right'
And as (ironically) Kelly said - "If it looks right..."
Fascinating project - hadn't realised the split into FVL light, medium, heavy and ultra.
Now I see what you mean by the Commanche comment SAS.