I'm planning on making this a 6volt mod... I think I'm gonna go with a 306 regular atty as I've read this is one of the "flavorful" atties around.
Scratch that. 6volts is definitely not for me. I played around with the grounding of the Lightsabre and found that I had too much resistance in my grounds. I fixed it, but wound up with having too much voltage and having that burnt taste when vaping. I had to adjust the wiring to bring it down a tad. Imagine if I made it into a 6v PV... I'd probably be coughing each time I take a hit.
I used a switch like that on a couple of my first builds before I began to understand the equipment I was using and that the switches were in fact only .5 amp !
Make sure you use a quick light touch when soldering any switch.
Clean the terminals well and pre-tin your wires.
Seeing your PhotoShop also makes me wonder. What if you could have a clearomizer of some type, perhaps with a thick walled body that would carry light well. Cap that with a clear plastic drip tip and light it with an led.
Not sure how to mount the led in a way that makes sense and transmits the light through the whole assembly. Perhaps the battery connector must be slightly recessed and the led housed just under the top cap.