That's why it's down to more than one or two factors. I'm very very strong compared to lots of people in my gym and alot more muscular lads, they struggle to gain a pound a week and eat shit loads more than me. I have to do atleast 30mins cardio a day just to keep my weight under control. The leanest I've been was a massive struggle, mainly protein diet, high intensity training, lots of cardio and the help of a number of "aids".
Yet lads who I train with will do no cv yetdropp a meal and look far more ripped.
What I'm getting at is it is more than weights, more than rest or the quality of supplements it's everything and nothing. Yet what works for that one guy won't for the next.