Pale ale priming amount: 3.8 ounces?

So I tried to get a little more precise when carbonating the last pale ale I brewed, but I'm wondering if I under-carbed it a bit. I used the BeerSmith recommendations -- on the lower end of the spectrum for pale ales -- of 2.3 volumes of CO2, which came out to about 3.8 ounces of corn sugar. Think that'll be enough? How much sugar do you all use when priming your standard house pale ales?

 

Oh, and this was a 5 gallon batch.

 

I have always used 5 oz of corn sugar per 5 gallons and have never had any carb issues. That covers OG's from 1.05 to 1.08.

 

I usually use that amount, or at least 4 oz. But now that I think about it, I probably only bottled about 4.5 to 4.75 gallons after trub loss, so I'm hoping the 3.8 oz. will work fine.