Ok so the husband and I ordered the SmokeTip Starter kits and began vaping in Feb and we've both quit using analogs alltogether. I've been lurking here enough to find that ST is basically a KR808 and I'm good with that. We ordered 100mg unflavored NIC juice and PG from Myfreedomsmokes, a multitude of flavors from Perfumers Apprentice and our bottles and pipettes from USplastic based on suggested information I found here. We've cut all of our nic juice to 25mg (for safety sake) and we've used the "Additional Mixing help" sheet excel v11 calculator found here to do all of our calculations. My problem or question is this: WHY on earth are we not getting ANY vapor compared to before? We really weren't satisfied with the inconsistencies of prefilled carts and while I realize that vapor doesn't have EVERYTHING to do with vaping really, I'd still like to have it. Hence "vaping". LOL I even have ONE flavor mixed with VG and it doesn't seem to be producing either. We boiled our carts (like in a video from Vapor4life's Vaping Valorie blog) and followed everything to a "T". I "feel" and "think" that we are getting the nicotine, but absolutely NO throat hit OR vapor production. Just ordered some blanks to see if that helps, in the meantime though, does anyone have any idea what else I should try? (barring a new batt or low batt)???? I have used them with freshly charged batts, pass through, nearly dead batts, the whole spectrum with basically the same results. Could it be our PG? I don't know...Does anyone? Sorry so long, just somewhat frustrated and feeling like we have messed up somewhere.