For me, I picked the Branch that has a longer distance.
I had a feeling the distance was too short (partly because the damage was quite nice to my feeling and didn't up it as it was Level 1).
So Looking at the branches in this thread, I took the Distance one.
I went farming and upped this one from Level 1 to Level 8 or so? Of course I did a bit testing, as I used it in rush1 and in Quest/Dungeon.
At Level 1 the balls didn't come quite far. I used the stairs at the -then port way-.
It only went a bit over the other side of the stairs. After I upped it to LEvel 8 (and at the moemnt 10), Its distance definitely imcreased to 2-3 people. For me I am statified with this.
I personally use Curse Cuse the most in Rushes 1 and low floor farmings. xD
EDIT: Curse Cuse with the Distance branch takes quite a lot of Kodora's and Salamanders kill in Rush 1.

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