After using the OS Giken for 3000km on roads and a trackday in the wet that became a DriftDay �� I can assure you that all the qualities that Mike CSG has said are true.
It does not make additional noises once you use the 80W250 liquid.
The control of the rear has become much more accurate
The angle of drift that you can use without doing a spin is much higher
I leave a video in case anyone is interested in seeing it.