I just received my Legacy and kick. I tried it with rcr123a bats = 6V and it works great (just like my wife's) I put the kick in and nothing. Finally after messing with it and wondering what the heck was wrong, I finally realized the button needed some washers so thats fixed. Now the kick is working with the 18490 3.7`s but I have it cranked all the way to 10 and it is giving less vapor and less throat hit. Am I doing something wrong? I have tried it on dual coil tank and regular Joytech 2.5 atti any help or suggestions would be appreciated.