I recently purchased a TFV8 Big Baby Beast like the title insists and I've been having a spitback issue with my juice. I have the .15 ohm dual coil in it right now, I believe it's the X4 head. Anyways I've gone through it and cleaned it, ran a few tanks through it and I can not find a solution to this spitback problem. All the gaskets and seals are good and in place and it all fits together really well so I'm at a dead end and wondering if any experienced vapers may have an input. It's recommended wattage is 30-70w and I've been running it from the 40-60w range to see if any of it fixes it. Thank you!