Seriously though if you can double on 11 only, wouldnt that Almost be the same as NDAS.
In other words are their any casinos out there dumb enough to allow DAS, but only allow DD on 10 or eleven only, just to make it sound good?
It would seem to me, that if your allowed DAS, but only allowed to double on 11 only, it therefore, should be treated as if you were playing a NDAS game?