Just found what's happening, it's like it's down-scaling the hair twice. If I scale the V4 chest to 90%, then I have to scale the chest bone of the hair figure to 111.11% to compensate.

4.5RC versions were OK with body part scaling and hairs.

Not done much with DS4.5 as I was messing with that swimming pool which has been done in Hexagon & DS3. Also been converting characters to Perfect V4s also using DS3, they look really fit...

I did have a problem with the earlier RC where the Nemesis car lost it's front wheels and the hose pipe I used in the pool scene lost it's nozzle. That's been fixed on this version.

Not imported much or loaded any DS4 scenes yet. My building blocks are DS3 scenes as I find it easier and faster when building using primitives.