I prime properly, soaking coil before assembling and then no-power pulls followed by very low power and slowly increasing. I do leave a small bubble of air when filling. My V8 Mini won't wick even with air vents closed and my fingers wrapped around it, no matter how hard I pull. Yet if I let air inside by opening fill cap, it lets out tons of bubbles until it is soaked just Perfectly. On my original Arctic, closing air holes and pulling does work, but barely. It won't flood, I almost wish it would. People talk about such high wattage with Arctic V8 tanks but I can only take one or two pulls on lower recommended wattage before having to let air in through fill cap aughhhh. I'm going to poke holes into the wick tonight. Big ones.