I too want to gain like that, though 100-120 pounds a year is more to my liking, I've been looking for some strategy to reliably gain 10 or so pounds a month. My weight is now up to 331 pounds and I want to swell up to 550 or 620 pounds.. The best thing I can suggest is keep doing what you're doing. You're fattening up quite well. One thing I found effective is to drink a half gallon of chocolate milk a day. With the way my job is now, it's very easy to do without letting anyone know.
5 years