I'm doing my first high alcohol extract and with a two year old in the house I can't really grow the yeast to the right amount. So I'm asking if using two packages of Wyeast smack-packs would be an effective alternative.
As dcp27 said, you might want to look at dry yeast. 2 packs of dry should be perfect for a batch at this gravity and likely still cheaper than just 1 of the smack packs.