Here is a study I started of my middle daughter yesterday as a matter of fact. I do not get the chance to do much from live sittings, but I remember, I think it was Michael saying, even though he draws all week, he still hires a model for a morning to practice. I wasn't sure if this is the kind of exercise you were refering too. Again thanks for your input, hopefully I can get you to expand on your "sharpen your form" statement now. This was done in pencil