Since I've started brewing I have yet to brew an IPA. I really want to try one for my next batch, but I need some help building the recipe. I have decided I want to use a Columbus, Summit, Simcoe, Amarillo combination of hops, bittering with Columbus. Below is the grain bill for a partial mash 5 gal batch with a 3 gallon boil volume. I am just unsure if I should combine hops at each interval (20, 10, 2, 0 min) or use each one individually. Here is the grain bill:
1.5 lb Pilsner malt
1.0 lb Munich malt
0.5 lb Crystal 20
0.25 lb Crystal 40
0.25 lb 2-Row malt
3.3 lb Pilsner LME
3 lb extra light DME @ 30 min
I really want to have a good balance between malt and hops. I also think that using an english yeast (S-04) with this recipe will give it a nice character. Or, should I drop the pils all together or go with US-05? Anything to know about brewing an IPA? In the end I'm shooting for something about 55-65 IBU. This grain bill should put me at 1.068 OG which is where I want to be gravity wise. Any help or advice would be appreciated.
Thanks!