Dude, those squats look waaay better than your last posts imo.
+ Bar is lower (but could maybe go just a little lower tbh) and hand/arm position better.
+ Knees staying out more (ankles not rolling), but keep working on this, you can see them really wanting to come in
+ Lower back not rounding. This could be a product of the lower bar position plus better proprioception (I think that's the word for it
).
Pause that vid at the bottom of your first rep and compare it to the bottom of your previous vids. MUCH better imo. The bottom of that first rep is very close to a correct position for a lbbs.
There are a few points, but they're not as dramatic as they have been. You're wrists are a little bit cocked, your knees are on the verge of caving, back is slightly rounded, your weight is coming forward onto your toes a little (I like to do the thing where you curl your toes up to the sky in your shoes to prevent this). But generally quite good. Just concentrate on these points every lift rep.
As for unracking the bar being uncomfortable... It does look like you are lacking a bit of tightness in your back in general when you unrack. Get under the bar. Get the bar into position on your back. Take a big breath in. Pull your shoulders back. Arch your back. Tighten everything up. Unrack the bar and step back.
I don't want to say this, but you are looking down too much when you unrack. It's like you're dangling your head down. Remember you look "down" but really your head/neck is just in a neutral position with your spine and the reason you are looking "down" is because your back is angled slightly forward.
As for what the other guy said:
1) Looks like you are improving this now.
2) Nah. Doesn't look bad to me. May be a couple of reps are a little fast which makes it look a bit "bouncey". In truth you do actually want a "bounce"... but the reason the "bounce" has a bad rap is because most people associate it with increased pressure on the knees. If you get your lbbs form down, you will get a "bounce" out of your hamstrings. So just keep doing what you are doing, work on keeping your ass back which will help to recruit your hamstrings.
3) Bullsh*t. If you want to do drills to get your squats better in the bottom position, stretch and do things like the squatting down and pushing your knees out with your elbows.