Are HKA and RKA really different powers...

[torgo]

...in regards to Aid?

If I want to aid a killing attack, do I have to buy the aid twice if I want it to effect both ranged and hand-to-hand killing attacks?

[Steve Long]

Yes, HKA and RKA are different powers, and have to be treated as such for purposes of Aid and other abilities (unless the GM sees fit to rule otherwise).