I'd give inhousebrew's recipe a try and either dry hop with cascade or pick up some more galaxy and dry hop with both. Been a while since I've worked with Columbus, forgot how resiny it can be- wouldn't want that dank quality to overtake your galaxy.
If you can't get more galaxy you might hold back half an ounce for the dry hop just so the cascade doesn't completely take over.
Primary: American Brown Ale
Kegged: American Pale Ale V2
On Deck: American Pale Ale V3