I would never do a youtube video cuz i might be accused of using too. I trained for years quite casually until recently when i started lifting heavy and training 4 to 5 days a week any opp i got. Sometimes i only get 45 mins in. But i look at what i gained in that time and still think WOW, no way. I despise drugs in any form. Fought to get a friend off the awful things, dont even like asprin cuz i believe it teaches my body to be lazy. Not everyone who gains is on drugs guys. I personally know a guy who used a lot of stuff incl steroids and i am bigger than him.
Forced reps are basically reps in which you force up the weight during the up-phase because it is too heavy to lift it in the normal way, often helped by a spotter, followed by slowly lowering the weight in a controlled fashion to the bottom, without the help of a spotter. Many spotters, however, let the forced up-phase take much too long. The up-phase of a forced rep should basically take the same amount of time as the up-phase of a quality rep. Forced reps can be very effective as lots of the growth stimulation actually comes from the down-phase (negative part) of the rep, which is very stressful for the muscle fibers.