Quote Originally Posted by Crushnight View Post
Actually SS has a 3rd, SS is flexible while CU is not , single hit CU wins, repeated hits SS wins but SS can be used for both CU shouldn't be.
This is the first scenario. Multiple hits. If SS could not be used for a single hit (or if it was weaker) then it wouldn't count as directly stronger compared to CU. Always keeping in mind not holding CU.

Quote Originally Posted by Crushnight View Post
SS is also placeable while CU is not meaning forced solo/group separation mechanics can have SS used while CU becomes half as effective or worse. (These are common enough in savage+ content, heck even Extremes have them)
Its the opposite. If you tap CU, the regen effect will stick no matter where the party needs to go. For SS your party has to stay in it for it to be effective.