I really like this mod. It's compact enough and lightweight. It's easy to use. I like that it takes 21700 batts. I take an extra with me during the day and the set up is just right. I have a dark red G10 and I like the feel of the material. But it's acting weird. 1) When I leave the mod alone for a while, it jumps from the watts I set it at to 42w. It also now and then asks if I've installed a new coil. This happens whether or not I lock the mod, btw. 2) The coils in the Pulse X RDA gunk up big time. It doesn't matter what coils I use. They gunk up faster than, for example, coils on other RDAs or RTAs. And I'm using the same juice in all of them. I had to have my Pulse X repaired. I dropped it a few times and had the juice spill all over the place. The repair guy did a good job. That said, it was doing all these weird things before I dropped it. And now that it's all fixed, it's doing it again. It works, so I just keep changing the watts back to where I want it and indicating that I haven't changed the coil. I'm just wondering what's going on here.