Somewhere between Weaver and Chapman. I only lock my strong side elbow fully when looking for my highest precision. But I usually keep it almost straight.
When I'm doing holster work from a squared stance (where I don't shift my feet upon the draw), I angle my shoulders by pivoting at the hips, bending the weak side knee forward and inward, and pushing my weight over it, rolling my shoulders and leaning forward slightly, whilst keeping the strong side knee straight. It doesn't offer the rigid form of the boxer's stance, but it's better than standing legs straight and feet parallel. It results in my center of mass dropping forwards, and towards my non-dominant side slightly.
I should probably focus on changing my foot position during the draw stroke, but I just never have.