Looks like @Bebop is doing a great job of getting you through this. Just as a couple of side notes:
1. Smok coils often are flaky. We get a lot of problems here with them.
2. Sometimes a mod will not read a new coil. One thing you can try is to fire the mod with no coil a few times and see if it indicates no atomizer. This may help it read a new coil when you put it on. 35 Watts into a .4 Ohm coil causes the mod to put out about 3.74 Volts. If the mod doesn't read the new coil and puts that 3.74 volts into a .15 ohm coil it will be developing about 93 Watts.