I recently won a 4 Nine and a kayfun lt. blk from Artemus and they're still sitting on the counter in the box. I've been vaping for almost a yr. and a half and my main devices are 2 provaris and an mvp 2, with carto tanks and protank 2's and various other BC tanks. It's been a mostly satisfying experience but I'm ready to move on to mechs. I have done rebuilding of simple atomizers but that's it. Some of the things I've read about the four 9 firing easily have me a little nervous. I'm just wanting some suggestions on good sources for tutorials and any advice on whether this is a good device for me to start on. I'm a pretty quick study so once I'm through the learning curve I'm sure it will be ok. TIA for any help.