I squat to parallel (or an ass hair below) out of habit from high school. I want to try to replace my squats with ATG squats.
So, today I loaded the bar with a load that I could normally squat for about 20-30 reps, went as deep as possible and just sat there in position while a friend watched my spine etc. He said the my spine including low spine was arrow straight but when I got past parallel my butt tucked under.
I am reading that this is not desirable but I don’t know what kind of stretches to do to fix it. I figured yall might be able to give me some pointers.