So having found out about the Co2 tank refilling and the dry ice and all that good stuff I'm back to using my SS.. I have the source model I didn't want to go this way but the price wasn't that bad.. I got the 1 Gallon BIB Dr Pepper.. But I was curious about making Cola somewhat to the taste of one of the two big brands but also Root beer as well.. However I'm not sure which one would be easier to do than the other.