Using Mr. Malty i want to brew a standard amber ale with 0.75 lbs of crystal 60 and 8.5 lbs 2 row. OG 1.046, and with 3 month old white labs tube mr malty says i need an 8 L starter with a intermediate shaking (5. 26 L with stir plate). Does this seem right? Thats like half a batch is just a starter! thoughts?