There's a new SX Mini ML Class that's coming out early December that will address the few issues with the current SXmini M Class. They've improved the battery access cap with better threads and updated the SX 350J Board. They make a very high quality
mod, and I have no complaints about the current M Class, other than the battery cap which has been addressed in the ML series. As others have stated, there will also be several new
mods made by the company that makes the VaporFlask. They're having them made to VF specs and produced by
joyetech, and the pricing is very competitive. I want one of the VF's with the 26650 battery configuration, and it looks nice, as well. Check out Phil Busardo's YouTube video that features Charlie from VaporFlask going over the new products.