Hey guys, brew day is tomorrow, and this is my first batch. Just had a quick question, I just bought a 5 gallon SS kettle and I was wondering how big of a wort I should make. Recipe says I should do 2.5 gallong min and put 2 gallons of cold water initially and top off with more cold water at the end to make up to 5 gal. total volume. My question is, how much should I use? I was thinking 4 gallons in the boil, and use the rest to bring up to 5 gallons. ( I was thinking of having 1.5 gallons of pre-boiled water on hand?) Should I do more, should I do less in the boil?