Vil dependent... also dependent on board texture. If they fold to C-bet too much, fire away... remember, you still have position. If it's a good board... 4K9r for example... I'd fire away. If they still call, and you whiff the Turn, odds are good they'll give you the option to take a free card and see the River. Or if they bet out on the Turn and you're unimproved it's an easy fold. Some ABC things you can do that will help you make more out of the value of your position.... Just remember, it is all very player dependent.