I just got done finishing my muntons nut brown ale, by finishing I mean I drank it all! But for the priming sugar I added about 4.5 oz of dextrose, you can also use the calculator at tastybrew's.com, I didn't go by the directions on the muntons can what so ever, didnt seem right, so I went with my lhbs instructions and for being a prehopped beer it was pretty good