when I first started diy i bought a few flavors and 240ml of pg and vg from mfs. Everything was so simple a few drops of this a few of that and it tasted great I had no idea my drops weren't 20 /per ml and I was severely under flavoring things. But still tasted great. Lately Iv been doing a lot more and got gallons of pg and vg from dudadiesel everything has gone to shit my Atlantis coil heads last half a day my original recipes I can't recreate Iv jumped around from thinking I'm crazy to being sure this pg and or vg is the culprit I'm now nearly positive it's the pg and poss vg too. I just ordered some from heartland vapes can I have anyone confirm heartland vapes pg and vg is good quality or is mfs just using some crazy amazing pg and vg. Today after work I'm going to make a pg/vg mix with no flavor to once and for all figure this out. I didn't think to do it until I read the stickyed thread saying to. Sorry for the long pointless post I'm really just venting. I'm at work stuck with a horrible tasting cool head. The juice will taste great for maybe 2-4ml than goes straight downhill. And like I said earlier when I would do like 5% flavored mixes it would be great now I have to do 15% minimum. Very frustrated. Once again I'm really just asking if heartland vapes pg and vg is for sure good quality cause this duda stuff is horrid I'm pretty sure. Thank you so much.