I realize that there are many variables that go into calculating a strike temperature. Things like grain temperature, water to grain ratio, amount of grain, equipment profile, etc. All of which I have entered into the software. In the end, for 10 lbs. of grain where I want to hit a rest temperature of 150 degrees, the software calculates a strike temperature: Heat 3.8 gallons to 164 degrees for a mash thickness of 1.5 qt/lb. Does the 164 degrees number represent: 1. The temperature the water in the mash tun needs to be before adding the grain? 2. The temperature the water needs to be heated to before transferring to the mash tun? I am assuming that it is #1. If the water in the mash tun is at 164 degrees, and I add 10 pounds of grain at the temp in the calculation, that my resting temperature will be 150 degrees (within +/- a degree or two). Is that correct? My first two mash temperatures have been low by 4-6 degrees, and I am assuming that is because I was thinking that #2 was correct. I was heating the water to 164 degrees, and then transferring it to the mash tun, and then adding the grain. Just wanted to check to see what everyone else thought before my third batch this weekend. Thanks!