Hi guys! First I wanna say thanks for a great ecig comunity.. I've been lurking for awhile and learned alot but anyways.. I wanted to know if it was safe to mix different ejuice together.. I justed ordered menthol 24mg and vanilla 18mg from esmokey treats.. I love both flavors and wanted a suttle sweet vanilla taste to my menthol.. So just wondering if it was safe/good idea to add a few drops of vanilla every time I fill up a cart with menthol.. Thanks again!