CDN, I will be revisiting adding something like 7up, gingerale, what have you in the next couple of weeks to dough, but my memory of past experiments was I found using all 7up made the dough too sweet for my taste and somewhat off tasting. I ended up with a percentage of soft drink to water. Since I will be starting with a clean slate, so to speak, I will be looking at soft drinks again as perhaps a sweetener. At this juncture I prefer agave syrup over either sugar or honey however I may find it's cost to be prohibitive. Best of luck with your experiment.