I've never tried this recipe. Looks interesting. I've been using the standard DIY C02 recipe for my 10-G for several years now: 1/4 tsp yeast, 1 cup sugar and a few cups of water. Takes only about an hour until i see results.
1 "trick" I learned to expedite the process is that I put the yeast in a little bit of warm water with a pinch of sugar in a jar w/ lid. Then put the lid on and shake it vigorously for a minute or two & let sit for about 15 minutes, you can actually see the yeast growing/foaming, then i add the rest of the ingredients.