(continued from last post...)
The single power resistor has just turned out to be so cheap and easy, and so well suited to my optimum vaping wattage, the complexity of adding a varistor doesn't seem worth it.
At first, I wasn't sure if the shape of the box would be easy to use, as it looks kinda awkward at first. But time has proven it to be very comfortable in-use. It falls easily to-hand, has a pleasant old-school heft to it, and being able to put it down in a solid tank-up position has its benefits. I've had no problems with leaking at all, and it can be left plugged in indefinitely and just puff as the moment takes you. (An added benefit of the cord -- it never gets lost!)
(continued on next post...)