"Draw a triangle with the long side at the base. draw a line down exactly half way. with the triangle divided into two we have a front and a back. As we enter the front this is the half where the knee will start to bend. Behind you this is where the leg will be straight"
If both legs are straight and both feet articulated, then the rear leg is noticeably longer (measured to the floor) and the body will have to be CLOSER TO THE FRONT FOOT THAN TO THE REAR.
It's ELEMENTARY GEOMETRY.
Yes, there will be a point where the body is halfway between the feet, but this CANNOT OCCUR when both feet are articulated and both knees are straight.
It's simply not possible to create an isoceles triangle when your foot articulation puts your ankles at such different heights.
"Try to remember that the front foot will become flat immediatly."
Doesn't really matter, the rear ankle will STILL BE HIGHER, meaning the triangle will still not be isosceles. If your body is equidistant between your feet, then either your back knee is bent, or your back heel is still very low to the floor.
Elementary and irrefutable geometry...