I started with 36 too (and some 24 that came with my first kit) but I much prefer the 36, vape it straight all day every day, sometimes I even vape 48 straight (not recommended for newbies.. ever lol) but for me it's not about the nic level so much as the killer throat hit that the higher nic produces. Whenever I let someone try my pv during a demo.. I ALWAYS tell them "I vape the highest strength juice available, you'll likely want something much weaker, the lower the nic, the less it kicks you in the troat" before I let them take a hit, then when it makes em cough they're not scared of the pv. lol they usually say "I gotta get one.... that's weaker" and we laugh and I give em sites and what busness cards I have on me