The only other concern is how the cap & tank are attached to the body, while not at all pocket friendly it is worth every penny.
Been carrying this one around, and have had it with me for days. The top cap and chamber are threaded together, and the assembly is tight and secure. You might consider switching to a silicone o-ring on the stock top cap. It will grip the glass much better than the stock rubber. Worse case you could glue the top of the glass to the top cap in two places. Personally, I intend to carry this around, and will do whatever to make it secure.
Last edited: