I would say M1T. I did M-Dien unfavored beta for 3 weeks at 4000-5000 calories a day gained 9 pounds. Today my 1st week of M1T is done up at 4000-5000 calories a day. Tuesday I weighed in at 233 today 240. Will say M-Dien only noticeable side was hairloss cause I did not start useing spiro soon enough. Now with M1T the lower back tightness sucks my ass. Strength is also more noticeable on M1T.