I just made an Oktoberfest lager recipe using LME/DME. 1 oz Vanguard for 40 mins, 1 oz Hallertau for 20 mins. I have 1 more ounce of Vanguard (5% AAU) and I'm not going to make another batch for months, why not throw it in when i switch to 2nd stage in 2 weeks? Any advice on that? Am I mad?