This is the way I understand the conversion ratios. Your OG is 1.055 so you drop the first 2 numbers to get 55. Then multiply 55 by the batch size. Let's assume 5 gallons. 55 X 5 = 275 gravity points. Gravity points from DME = 46 per pound\gallon..... so divide 275 by 46 = 5.9. 6 pounds ought to make the conversion ratio. You can just steep the Crystal malt for the remainder of the recipe.