MrAce, on 2013-April-28, 05:10, said:
It all depends, what would south bid over 1♦ and then 2♦ with 5♠ + 4♥ 8 hcp and 14 hcp ?
One of these hands should go through double. I am not sure that there is a standard although I guess most would consider 2♥ forcing and then the weak variety has to be the double. There is a good argument for it being the other way around and treating double something like NMF.
Bidding 3♦ followed by 3NT as in your suggested auction should show doubt I think. Would you feel comfortable leaving it there as North?