I've added sugar to the boil but never to the mash. There's no instructions in the recipe. It lists the grain bill as 12.25lbs 2 row, 1lb caravienne and .66lb sucrose or dextrose. Thoughts?
I would add it to the boil. I don't see any benefit to adding it to the mash. Regardless of your sparge techniques efficiency, you will lose some in the mash. Like extract, I would add it towards the end of the boil, or at flameout.