I would guess 15 I had no desire ever to be leaner at 15 I have abs and good definition I have been around 310 at around 17percent or so I was so fucking strong then it was ridiculous like crazy strong in order to get that large I used around 3 grams a week on average really never counted as stupid as it sounds just shot what ever sounds right at the time i ran generally sustanon ,deca,masteron,tren about 3 grams but insulin is what basically made me over night from a 380 or so lb bencher to a 500 weight 240 to 300 I could have continued to grow had I not stopped I was also using all sorts of peptides igf all forms and high dose ghrp2 and 6 if nothing else they made me hungry enough to eat that much i j decided to get drunk for a couple years and stopped no ryhme or Reason insulin humalin r above 40ius a day probably over 60 was the game changer I'm sure some of them igfs had to be legit to God knows which fucking ones but it all just came together I was making a lot of money at the time and I sold steroids so all my gear peptides where free I know the insulin was the game changer I also think I happen to get my hands on legit igf1 for a long period god knows from where maybe dat or man power