Question about HSR/HCT Stacking.
I've recently decided to change my Air Wand to something more flashy, namely the Tormented Scepter which has an inherent HSR 20 to <attribute> and is inscribable.
Now since Wand Wrapping upgrades only give HSR <attribute> and HSR <ALL>, if HSR doesn't stack this would effectively mean the Wand Wrapping upgrade slot for the Tormented Scepter is useless.
So my questions:
1) Does HSR <attribute> stack with HSR <attribute> on the SAME WAND?
2) Does HSR <attribute> stack with HSR <ALL> on the SAME WAND?
3) Does the above apply to HCT as well?
EDIT: And by stacking I meant either through direct compounded chance or through separate "dice rolls".