These are two great beers... I did a recipe based on Two Hearted in October (based on the recipe in the database):
11 lb. American 2-row
2 lb. American Vienna
8 oz. American crystal 20L
8 oz. Dextrine malt (Cara-Pils)
.85 oz. Magnum (14.4% AA, 60 min) 32 IBU
1 oz. Centennial (9.7% AA, 18 min.) 12 IBU
1 oz. Centennial (9.7% AA, 5 min.) 5 IBU
1 oz. Centennial (9.7% AA, 1 min.) 1 IBU
(plus two rounds of Centennial dry hops for a week each)
Yeast was US-05. SG = 1.066. FG = 1.014.
It turned out pretty good. Bittering with Magnum seems pointless in hindsight. Hops are a little on the harsh side still. The smell is definitely less citrussy than I expected - I don't know why.
I like the grain bill though. Full bodied but dry, and great lacing.
Post the recipe that you decide on. I'd love to have a great all-Centennial 'house' IPA.