Keep it simple, and let the citra shine.
1oz 15 minutes
1oz 10 minutes
1oz 5 minutes
dry hop with 2 oz.
not sure what the aa % for your citra is, but usually its about 14%, you should get about 55 ibus with this schedule, but since all the hops are added in the last 15 minutes, it should be a lot of flavor and aroma.