I feel your pain-- I broke my right hand about ten years ago and suddenly discovered how many things I couldn't do one-handed. (This is why I always insist on driving cars with automatic transmissions. I would have been carless for weeks otherwise.) I got really good at typing left-handed after about a week, though, and even got decent at eating sushi with chopsticks left-handed. But the aversion to using things that require an extra hand has remained, which is why I doubt I'll ever fully switch over to a manual 510-- I'm too used to vaping with an automatic in my mouth while typing two-handed, for example.
I know they make automatic batteries for the 510 (at least, they used to), but I haven't heard much good about them, and it'd probably be too heavy to vape comfortably one-handed while driving anyway. I'm guessing that you'll be happiest with a very small and light automatic e-cig, preferably with a flat-tip cart, that you can use hands-free for decent stretches while driving. You won't get the same hit, obviously, but it's just until you get to where you're going and can bust out the 510.
I'm pretty sure a lower-voltage e-cig will affect the flavor of Rich (and everything else), but quite likely in a positive way. I've heard that the 510 kills a fair amount of flavor while producing so much vapor. If you find that Rich is too strong in a smaller device, you can always cut it down, or even get a little Rich Lite/Mild in the meantime.
Hang in there!
