Hey man, I coped a pair of them also.
I mounted them at their recommended "progressive mount" spot which is at 94 cm. Which is right where the two colors change on the ski.
Its slightly back but I figured its a directional twin and I don't want to compromise performance just for a "center mount" when in reality I will only ski park on it 20% of the time.
Just my thought. Haven't used them yet obviously but looking foward. I got 189's which are pretty dam big hoping they ride a bit small with their crazy rocker.