Hmm. This is from a skating website: "All skaters should try to achieve good posture and stance, but what is it and how should you try to achieve it. We often talk about 'poor' or 'good style'; this often also refers to what we call good posture.
The first thing to be aware of is that your back line is strong and upright but not stiff. This often is achieved not by thinking about your back but by concentrating on your stomach strength. You should stand straight and tall, then tighten you buttocks and slightly lift your pelvis, while pulling your navel into your spine. This creates what I call 'core strength' and allows you to maintain your centre, while still being able to move, lean or rotate. You should also ensure that your shoulders are relaxed and rotated down in their sockets, so that you can feel the muscles of your back pulling the shoulder blades down towards the centre of the back, the head should held erect and with the greatest possible space between the ear and the shoulder"
And:
The pointe of good posture - Telegraph
I'd say they were both advocating "neutral" pelvis.