I tried the eJuice Me Up calculator tonight and it works pretty well. There are quite a few fields to fill in to get everything working, like PG and VG percentages for each flavor and zeros in every box that you’re not using. Once you have it configured, however, the settings can be saved in a default file for next time. I like the fact that each recipe can be saved as it’s own file and that ml, drops and percentages are all displayed for each ingredient. I’m not sure if this is going to take the place of Scubabatdan’s great Excel sheet for me, but it is a nice program. A pretty comprehensive list of ejuice calculators can be found on ECF. Happy mixing!