I just did 11gal all grain with citra and Amarillo as well today! Keep me posted on how yours turns out and I will do the same. I also used wyeast 1332 northwest ale.
Brewed the 10 gallon AG today! I did my best to read about 70 pages of this thread.
My tweak in this was that I used wy 1056 and added a good pinch of Amarillo to each of the cascade additions. Super excited!!
I am on my second beer ever. We started with AG no extract here. But both have been IPA's. I know exactly what you are talking about with the lack of mouth feel.
IT WILL GO AWAY!! Just wait and it gets better with age!