Thx for the efforts ! (fewer Polygons)
>Of course you will get really bad looking models when doing this...
Yes but it's for animation near/ far away :)

For the "normals" I will try to explain the Steph problem :)
C4D knows to remake the good "normals" : its the "Backface Culling" function during the rendering
It was disable for show you the the aspect of normals after the "poly transform" in Moi

Why it's a problem? In real time "Backface Culling" makes to lost performance (speed) and create annoying other probs :(

Normals can be also be remove in the good way in C4D before the rendering in but in this case
informations of the "Normal Smoothing" based on the Nurbs objects is lost :(
And that is a pity because the "Moi Normal smooth" quality are very good for simulate the perfect forms of nurbs objects even on Low Poly Object!

It's why if "good Normal orientation" can be made in Moi that will be the paradise :)