Thanks TB, completely forgot that he drops a few f-bombs. My apologies.
I have to totally disagree. Form is the most important thing.
Really? I'd argue that work done is the most important thing, whether that's low weight over high reps or vice versa. There is no way to cheat form in such a way that it makes a lift easy, as if a lift is easy you should increase the weight/reps.
This guy has some of the best genetics in the world. He can do anything and grow.
Which he states in his video. His results go far beyond just genetics though - he works
hard. Most people in the world, if following the right plan, can grow and grow. Again, as the video states, the ones who claim they can't are often the ones who want to eat clean and not gain fat mass while
bulking.
It does not work that way for normal people. Amazing genetics is the same as steroid guys. They play by a different set of rules.
Having good genetics or being on steroids still requires a lot of hard work to get big/strong. They play by exactly the same rules as anyone else, just that they can grow bigger, quicker. They still eat big, lift hard and sleep long. Neither are a magic pill.
If you push yourself super hard every time to the point where your form breaks I promise after a couple months you can say bye to your gains. You will burn yourself out. Once you hit a certain limit your muscles virtually stop working and your nervous system takes over.
Maybe if you were working out everyday, and not eating or sleeping right. I've never lost gains through anything but not working out, and I push myself very hard every workout. Your body will adapt to these things, just like it adapts to most things - but you still need to take care of its basic needs.
My opinion is if you wanna hit a certain muscle do the form that will hit it properly at a high bodybuilding rep range. If you wanna lift heavy weight with explosive movment than do that separately. Don't combine them into one sloppy set, you're just not gonna be able to recover and could easily get injured.
I agree with you, but it's not like you won't make big gains by doing heavy weight and high reps, even with isolation exercises, it's just that most people aren't conditioned to do that sort of thing. If we were all told to do heavy weight and high reps from the very first day that we lifted, that's what we would be good at because our bodies would adapt to it.
You wouldn't be lifting as much per rep as if you were pure powerlifter, or for as many reps per set as if you were pure bodybuilder, because doing both at once is a compromise, but you wouldn't be so far off.
On the subject of form, I feel I should clear up what I meant when I said that form isn't that important. From a safety point of view, form isn't that important for certain exercises, such as bicep curls, as there is little risk of injury unless you are being really silly - swinging a little on curls isn't going to do you much harm. Other exercises, such as bent-over rows, need strict form because without it they become dangerous.
From the point of view of efficiency/hitting muscles well, cheating form on an exercise that doesn't require strict form to be safe isn't much of an issue, unless there is a requirement to perform it textbook (competition, etc.). The extra weight/reps that cheating with form allows you to achieve will quickly be made up with the extra weight/reps you add to keep the exercise challenging.
In response to Exige, if someone is cheating to the point that they start to do a completely different exercise to what is intended, they need some help.
There are several sites that break up different body part lifts and give videos and proper names. If you want to change things up a bit, check out one of these sites and see some different shoulder lifts, for examples. Bodybuilding.com is a popular one. Pretty good archive of lifts.
Personally, I just add some leg work to other days - same with my abs, actually. Like, say, 45 minutes of biceps workout and 15 minutes of legs. I do these shorter workouts three times a week as opposed to once a weak, though. Total time per week is quite similar, that way 
Can't be good.
