1. I agree, stop the wiggling.
2. Agreed.
3. Don't agree on stance width. His stance looks just about right for an athletic squat.
4. I coudln't see his toes. Hard call there.
5. His knees do come in a smidge I agree.
6. I don't agree on sitting farther back. Huge difference between the descent of an athletic or olympic squat and a pl squat.
7. From what I can see his ass does go up first.
8. His back angle is pretty much spot on for his squat. He isn't leaning over too much and his back angle besides the upper back arch is flat which is what you want in a squat like this.
9. Agree with getting better shoes.
10. Pretty good depth on the squats, not quite a full atg squat where hams almost sit on calves though.
Just for some cred I work out and get coaching from a usapl record holder in the 242lbs class and have seen this guy squat almost 900 in single ply in the gym DEEP when he went up to 275 with a heels slightly wider than shoulder width stance. This guy is also a bench record holder.
I was personally coached on how to squat by this guy and he coaches other national level lifters and then I started reading articles online about how to squat and started changing my form. I went wider stance. I sat my ass back far. I had perfect pl squat style stance and execution.
And it was hurting my knee. I talked with him and showed him my form and the first thing he said is that is not how I taught you to squat. So we reset my form and all is well again.
Difference? Heels shoulder width, maybe a smidge wider. Toes about 30 degrees. Look forward. Tight upper arch. Go down, straight down. Bottom position is text book. Back is perfectly flat, not over arched or rounded. Rise up, ideally ass and upper back pretty much come up at the same time though the ass appears to lead.
There are alot of difference ways to squat. An olympic lifter would give completely different advice on how to squat compared to your checklist.