I have access to a flow hood, sterile 2 ml flip cap tubes, and sterile lab equipment. So would it work to take my smack pack or white labs tube and and some glycerine (should be purchased sterlie) and transfer lets say 1 ml of the pure yeast slury and 300 ul of glycerine into the tubes and freeze in the -80? I should be able to get atleast 20 tubes of pure yeast with plenetly left over for that weeks brew (using a starter). Then when i need the yeast just thaw and pitch that into 10 ml tubes of sterile wort and step up from there to 50ml then 2L? Anyone see a problem with this?