I used to have problems with my attys or my mech mods getting hot as well. Its all in how you build and place your coils in relation to each other and to the airflow. (If I am wrong someone please correct me). I use 24 gauge and I almost always end up with .16-.18.I like a nice warm vape, but I not this hot. (Too hot for me, and it was making my mod warm as well) Before a buddy showed me about coil placement, I would just slap a build on my rda, squeeze out the hot spots, wick and vape. I brought my little boy rda to my friend at a local vape shop and he rebuilt it for me using the same gauge and wraps I was using, as well as the same ID. Came out exactly .16-.17 and it was so much cooler! I told him how I built mine and all he did was adjust the coils up or down (so the airflow was hitting the coils immediately) Made a huge difference. So, now when I build I make sure the coil is gonna wind up right where the airflow is gonna hit. I thought I was doing it right as the airflow seemed to be hitting the coils. Heck, I could even see the coils right through the holes. Anyways, enough rambling, here is a pic. (24 gauge, 5 wraps, .16 ohms ) (and if I am wrong on any of these things, someone please correct me)