I am using a Riva but I have also tried it with my joye 510. I have tried atleast 4 different atties..
Are they automatic batteries by any chance. Very weird, there is not much you can do wrong.
IMO, you can't really drip 100% VG very well. I don't know what happens, but all I taste is atty when I tried a 100% VG.
My batteries are fairly new and they are manual. I also try dripping with a LR atty and the same thing ... nothin but juice in my mouth and very little vapor if any.
Are you getting a dry taste when taking a vape? With drip tips I found that sometimes the juice hits the edge and would get in my mouth instead of landing on the wick or bridge. I had the best experience when carefully dripping down the center of the drip tip....but again if you are adding 5-7 drips there shouldn't be any reason there's not enough juice. Are you having the juice leak out the bottom or other signs of flooding?
YouTube - 510 eGo Drip Tip Dripping 101.AVI
Dripping is easy with VG. You only need 3 drops to vape normally for 15 to 20 minutes. Too much e-liquid will flood the atomizer and you would have to blow out the atomizer. Obviously, if you vape insanely constant like I was in this video, It will not be 10 or 20 minutes but much less. If it starts to taste bad or burnt, you need 3 more drops. Dripping gives more throat hit and flavor.