I've had my Legacy + Kick with an 18490 battery for about 5 days now and I have been burning through batteries and having issues with it not firing consistently. I was ready to head to the classified section and post it for sale. I was extremely frustrated with the operation of my beautiful new mod so as a last ditch effort I hit the web to search for a fix. I found a closed thread on here that said to clean the hex post in the switch and put some Noalox on it. I did that and it made all the difference in the world. It's like a totally different device now. I wanted to love my legacy, and now I can. Puresmoker, maybe you should consider doing this from the factory, or at the very least include instructions with the packaging for people who purchase the Legacy + Kick. I suggest this because I know I am not the only person who has had this issue. Thanks and have a great weekend!