In-Geom reroll question??

So, I have had an ancient In-Geom for about a week and haven't been able to decided what to roll. I could roll the damage range higher or roll area damage to CRD (or possibly RCR). I use it for LTK Sunwuko, but could end up doing LoN.

http://imgur.com/1UJastg

edit: I guess i didn't even consider rolling the %damage...