I just did a big IIPA (1.096) and used something similar in hops (10oz for a 3 gal batch).
It's delicious. It was in the primary for 3 weeks. It was done fermenting after the 2nd week, but I let it clear another week. From what I gathered, its better to not let an IIPA age too long as you'll lose some of the aromas. Barleywines, etc you can let bulk age for a long time, but I wouldn't in this case.
I say if the FG doesn't change over a 3-4 day period, bottle it relatively quick and don't let it sit too long. It will take prob a month to carb up anyways with the high ABV of a 1.1 OG beer.
Future: IPA, MO/Citra SMaSH
Bottled/kegged: Sweet cream Stout (variations: vanilla and vanilla/coffee), "Apfelweizen", Imperial IPA, English Brown Ale, Honey Hefe.