good discussion!i agree that 1s is unbanced and h is singleton!partner can receive the details!if h hold xx ajxxxx xx qjx he bid 1nt!if opponent bid 2d,we can play good defence!if opener bid 1n,he hold 4342,4333,3343,3352,3244,2254!if opponent bid 2d ,it's a good choice to bid 2h !we can not consider s 44 fit!if responder has more stong power!he would bid second round,we can bid 2s!it's better to bid intermediate precision 1nt