Tom, ignore the lbs of grain and water. I was just plugging in numbers to see how the formulas behaved. If my math(formulas) are correct then the water and adjuncts should adjust total est. gravity and DP accordingly. I am just asking for a few extra sets of eyes on the formulas. Yes, 850/250 would make it a thick mash however, in order to get the desired gravity and DP with my current formulas, that is what it is showing I need to have in the pot to get those results.
Mash tun is steam jacketed and the corn is hammer milled through a 3/8 screen. The barley is from BSG and is crushed to a medium.
My MT has a capacity of 300gal.