The ‘Pie’ Wedge is what happens when people start tango. You are told to ‘collect’ your feet. This means your heels are touching and there’s a small gap, about 30 to 40 degree angle is left apart. And your toes do not touch. This ‘Pie’ Wedge is meant to create stability in your stance. Spoiler Alert! It doesn’t. The reason has everything to do with you never learn what is generating your stability. Which, by the way, you will hear is generated from your ‘core’. That’s more bullshit by the by. Your stability, or the sensation for that stability comes from one place > Your inner ear.