2 years back i was doing 2 reps of 170kg (thats 3x 20kg plates and a 15kg either side) on a flat bench. at the time i was 14 1/2 stone, i could never get the 180kg (4 plates)
never trained for 2 years and went back and built back upto 1 rep of 140kg after 8 weeks.
i was always the smallest looking out of use who trained but the strongest for some reason.
my mates were 16 1/2 and no where near me.