Is there such a thing as perfect exercise form? Probably, but is there one exercise form that fits everybody perfectly? Absolutely not! Exercise form is highly dependent on your anthropometrics. Not everyone’s femur to tibia ratio is the same, not everyone has the same hips, not everyone has the same length torso and so on. The point is, to think that there is a universal best exercise form is just kind of silly. We need to make sure we treat everyone, including yourself as an individual. Yes there are techniques and cues that seem to be near universally beneficial, but only if they fit into your already existing, individualized form. So, learn what is bad, learn what you shouldn’t do (what is dangerous) and then develop a form that fits your needs! Odds are it's not too different from everyone else and odds are it's not exactly the same as it is for everyone else.