idk if its just me, but i do get some misfires on my magneto. could be user error, but i cant always tell if its firiing unles i hear the crackle of my coil. i feel like i have to be more aware when firing the magneto. it used to be my go-to device cuz i liked the look with my igo-w, but now i use my k100 for my everyday beater. (not afraid of dropping it or scratching it.) the k100, imo, is more efficient as far as firing goes.
i notice when i have the magneto in 18650, the telescoping part feels a little unstable and moves around a bit when i try to press the button. but maybe its a QC thing. the two youre inquiring about were the first of my mod collection. now i have launcher and astro clones that are my new favorites. but for a night out, i take my k100.
also, the button assembly on the magneto makes it quite a bit longer than other mods. just putting in my .02 for your decision.

btw, look around. theres other mods out there for decent prices. 101 vape just released the m16 clone for $25. i picked that bad boy up instantly. haha.
for the prices of mods/clones nowadays, why not try em all? hahaha. happy vaping!