Planing a high gravity ale OG 1.087. Mr malty says need 325 billion cells or 1.6 packs US-05 dry yeast. Is it better to make a starter or just pitch 2 packs of yeast? Also would you pitch the full 2 packs or pitch 1 and a half like malty says. If pitching the 1.5 - 1.6 packs like suggested, can you save the .5 pack for a future batch or do you just throw out the remainder? If you think the starter is the way to go, I do have a stir plate. Thanks