Whoever said a hip hinge exercise is a good idea is spot on! I break easily and don’t heal quick. I’ve been deep squatting for about 12 months now using a kettlebell. I’ve learnt a lot about how my hips function as a result and my lower back is in the best Nick it’s been in for a long time. Personally I’d only do what I could with good form with plenty of breaks. Unfortunately you don’t get the just been to the gym feeling if you do that. A set of 21s at the end of the session can make up for that.