I just got through brewing a cream ale yesterday. I calculated all of the measurements and scaled it back from a 5g to a 3g batch. I tried the BIAB technique for the first time expecting around 70% eff. That would have hit the numbers on the head. Well I ended up getting 78-79% which according to brewtarget will leave my brew way low on the IBU's... just a thought here but is it entirely crazy to think that I could calculate what I need, boil just hops and a small amount of water to extract the oils and pour that into my fermenter??