would that work on a ego c twist?
i wouldn't recommend using any rebuildable on an ego twist. i know that there are some that are designed for it, but too many things can go wrong, especially if you've never rebuilt an atty before. even if you know all of the theory by heart, actually doing it is an entirely different animal. i'd say best case scenario is you end up with a busted ego - not a knock on you by any means, but it's not easy to make sure you get all the shorts out the first time around.
i would highly recommend a vamo; it's relatively cheap, but it's invaluable for rebuilding. it fires anything down to 1.2 ohms, but reads resistances down to 0.1 ohms, so even if you outgrow it, it's still one of the most convenient ways to check the resistance of a coil (i actually lost my first one after getting into mechs, but bought a second one entirely for this purpose).
this is probably the best kit i've seen:
$54.32 Vamo V3 Variable Voltage E-Cigarette Battery Compartment Set - with Nitecore I2 charger / 2*Sony US18650V3 batteries at FastTech - Worldwide Free Shipping
the charger it comes with is excellent, as are the batteries. they're actually rated for 10 amps, so if/when you decide to move on to mechs, you'll be able to safely use the same batteries down to about 0.50 ohms (4.2 volts / 0.5 ohms = 8.4 amps, so within the rating plus some headroom for safety).
regarding the atty, if you're dead-set on a genesis, i'd recommend either an rsst (if you're okay with a plastic tank) or an aga-t2 (if you want pyrex). i personally started with an aga-t2, but i hear the rsst is a little easier to set up.
above all else, please absorb as much information as you can, and be safe. as i mentioned above, the batteries in the kit i recommended are rated for 10 amps - this is more than enough current to do some serious damage to your device and to you.
edit: just to clarify, in the first paragraph, "busted ego" is referring to your twist, not your pride