I thought I had my mind made up on the single coil Ammit RTA by geek vape as I thought it was basic and simple. It turns out it's a little tricky to set up in actuality. I'm looking to get my first RTA next week. The Canadian vendors I buy from don't have all of the options you guys may have. From the vendors I buy from the other three that have peaked my interest are the Vandy Vape Kylin & Govad RTA's and possibly the SMM Serpent..I'm not stretching the truth when I say my options are limited. That's probably all I can get my hands on lol So basically which is the most straight forward? A leaky & difficult SOB is what I'm what I'm trying to avoid. I'll be using a Smok Alien 220 with samung 25R's and some basic single wire builds..maybe basic pre-made claptons as well..I like a low wattage vape 30-40 watts I'm willing to bump it up to 50-60 if that's what it takes to get a good vaping experience and of course needing to stay within the safe limits of my batteries. Any help is appreciated.