After several reliable sources here describing their hop schedule, my last IPA had 16oz in it. This included FWH, 60 miunte bittering, 10, 0, and dry hops. Beersmith calculated it at 160IBU in 5.5G of 1.074 wort. The FWH really did make the bitterness much smoother. Real easy drinking for what it was. I loved it and will definitely use this schedule often in the future for IPA!
Edit: this was 12oz in BK, plus 4 oz dry