Well, here we go again! Just another update........ The carto filled with RY4 is vaping nicely, good vapor, warmth, and th! BUT, I just filled one up with apple 26mg, and I'll be d@&*#@ if it vapes worth a crap! They are both Dekang juices, and similar viscosities (apple may be a tad thinner) I just cant figure it out. It is working, but I am getting very warm (but not much) vapor that burns my throat! I would say it was the liquid, but it vapes fine in the clearos? Maybe I just need some standard resistance cartos?