Hey Wess I like everything you say, But just want to point out 1 little thing, YOU ARE ADVANCED, and the beginners need to understant that they need to build up to some semblance of strength to put on more new mass.
So many pumpers stay the same and NEVER CHANGE. tHEY can up light reps to infinity and it wont put a Gram of solid BW on their chassis.
But yes, control and a tight contraction is very VERY import.
Generally agree with your posts but in this case, for lats and chest nuance matters for development, not for strength. Try to get the form right as much as possible, even if only for part of each set until fatigue takes over. Try to maintain good form until fatique makes it impossible, then continue with imperfect form, partial ROMs, cheats, rest-pause, etc. - whatever it takes to exceed your previous best reps/weight:
-Elbows in, pulling/pushing with them, making sure it's felt in the muscles.
-Doing this creates scapula restraction - shoulders back and slightly scrunched together, pushing the elbows slightly forward. In effect you're making the compound exercises a little more skewed towards isolation of the torso muscles and away from secondary arm and delt muscles.
-This also reduces the chance of shoulder impingement aka injury.
-Experiment with different grips and grip widths. For example, it's not necessarily essential to use wide grips.
Try to maintain form as much as possible even at the end, cheat the weight up before entirely abandoning form!!