Here's my problem. I made a iipa with an estimated sg of 1.075, 12 gallons at end of boil. My plan was 2.5 oz nugget 16.1 aa% at 90 min and aiming for around 70 ibus. I took a reading during the boil and saw that it was 1.100 so I added 1.5 oz of Columbus at 60 min to add 35 ibus and .5 oz...