if you have an easy way to fix lockout alco let me know, ive been working on it for 3 years
couple issues:
- loose the shorts, thats what made you miss your first pull. use a shitload of baby powder on your thighs so the bar will slide up.
- your stance looks very close, i would try widening it slightly as well as pointing your toes slightly out to give the glutes more emphasis at lockout.
- take your air at the top before your grab the bar. I used to do it the other way and thought it worked good, but in the end air at top works better as you can get a better stretch reflex at the bottom.
- this close out, just pull singles. I like reps for building the strength in the offseason unlike some, but right now they are just going to fuck with your form.