my first IPA had 4 ozs of hops, 1oz simcoe 12.9, for 60 min, at 30 into boil added another 1oz of simcoe. at 10 min till end added 1oz of centennial hops then 5 til end added another 1oz. Almost to bitter for me and I love IPA!!! Aroma and hop flavour was great!! Partial mash