i cant recall him saying that at any point, perhaps i missed it but unless someone can provide a link or a quote… i doubt it.
regardless… who cares really lol. you’re gonna get more benefit out of doing FEF runs, flying sprints, short SE work, etc etc and discussing those things will lead to much more improvements than squatting deeper than parallel will.
Honestly, you think bolt squats ass to ground? LOL. or tyson? he does a whole bunch of random sh*t, you honestly wonder how he got more developed physically over the years. and powell? he doesnt even squat…
But in general, to sum up the topic of discussion, squatting ass to ground will lead to better improvements than the traditional gym parallel squat will, but a main reason for that is cause the traditional gym parallel squat is nothing like a REAL parallel squat. to add to it, squat a bit below parallel, add in RDLs, hypers, and some body weight glute hams, and you’re fine for overall strength/posterior chain strength.