One thing I have been paying attention to now that I have heard a few stories of exploding batteries is; please make sure the path of least resistance is not pointing toward your face. I can't tell how your atomizer connector is secured in there but just from the pics it looks like either your button or your atomizer connector(which is pointed at your face when you vape) may be the path of least resistance.
If I made a mod the end cap would have holes in it or something allowing it to break away if sudden pressure occurs within the housing.
Just something to think about, with all mods.
Nice looking mod though, looks like you did a fine job.
