I'm not sure. In the previous two batchs I've made, both IPAs, I steeped 8 oz. Crystal in a gallon of water then used another gallon of water to sparge. Both of these were added to 4 gallons of water I used to make the wort, boiling for 60 minutes.
In this case, I'm not sure exactly what to do. I'm thinking I should use 2 gallons of water to mash the grains, use another gallon to sparge, then add 3 more gallons to do my full boil?