Well, I'm a youth of only 58 years, so obviously I'm a bit more bendy. But I've looked at some references, including myself in the mirror, and I think I'll change my test squat to a more relaxed position with an overall stronger forward lean, some lumbar flexion and less extension in the upper spine. It's important to make sure that the thigh bend interacts well with the hip bend, anyway.

-- I'm not mad at you, just Westphalian.