I agree completely with the above posters. I also recommend for active gainers to get weighed after a Big Stuffing Day before bed. Then again the following morning. Or weigh in the morning and again at night to see if they have eaten enough that day. There seems to nearly always be 2-3 Lbs lost overnight. So the further one pushes the scale up during the day. The better the chance of retaining some new weight the next day. 
13 years