Hi, planning on brewing a double IPA on Sunday - 13 lbs 2-row, 1 lb carapils, 1/2 lb C-60. I'm planning on no mashout, full volume (9 gallon) mash at 152 for 60, then drain/boil. I'd like to use the top mash with a couple lbs of specialty grains (1 lb melanoidin, 1/2 lb midnight wheat, maybe some victory) to get a scottish export 2nd running. Do I do a second (full volume) infusion while my IPA is boiling, then drain into my second boil kettle while IPA is chilling? And how do I determine target gravity on a second running beer in beersmith?