I am a penny pincher and boil out and try to reuse what cartos I have when I am not dripping my attys. I know that they are not meant to last forever, but sometimes after cleaning I can fill and throw it on my 5V mod and it's great and good at 3.7 also. Then again, sometimes it taste like total ... at 5v and 3.7. I am guessing toss these out. Been playing with them all day at the different voltages and get different results. Am using box mods from Madvapes and 2.0 510 cartos and 2.5 808's. You guys think the carto is just gunked and toasted? Or is some juice just crappy at these voltages? TIA