I intend to run this at 12V which should supply 500mA, which you shared should be adequate.
Correct, this was confirmed by Cioks.
I also see you mentioned if you’re using a Cioks you don’t need a polarity reversing power cable? What’s the reasoning there?
The green Cioks cable, the Flex type 4, already incorporates a center-positive connector that is 2.5mm.
I have one of their red tipped cables which I thought was for that purpose.
The red cable, or the Flex type 2 cable, is also center-positive but it is 2.1 mm connector not suitable for the any Eventide pedal.