Most days the only thing I want to do is squat, get in a few pulls, and a tiny it of grip. All of my recovery ability is for more jits practice, which is beating the shit out of my hips right now. Spend a lot of time moving around in kneeling positions? Well when you don’t for a few years and start back up you will be one very sore freaking sucka.
So on testing squat depth – the #1 misconception is you “need” to hit a certain depth. Test it rather than know it.
My application, without regard to “right and wrong”
Have 4-5 objects, test depth on each. My current set ups are a 8″ platform, 11″, 12.5″ (those two are most common depth’s right now) 14″ and 18″ (that one never test’s bad, but never better than the others either so I rarely do anything that high right now).
Why even use a box? For me it is consistency and safety. I want to know I am in the range that tested well, and I want to know if I am stuck for any reason I can simply wait for a second, then get back up. The number of additional claims of benefit to various styles of box squats can be found through out the web…I chalk it up to testing better than no box which is all I need to see in order to proceed.