DNA200 and 250 chips are great but get a mod like the Lost Vape or Think Vape that already come setup. A lot of DNA mods require the user to do the initial setup via escribe. If you vape low wattage the DNA 75 mods are fine but they are not as efficient as the 200 or 250 chips.
FSK chipped mods like the Hohmtech G2 and Slice require a learning curve, check my signature or if on Tapatalk check the stickied thread in the regulated mods section for a FSK new users guide. You do get the additional ability to tc any wire including kanthal and nichrome, this is dependent on the user defining the proper setting though.
Yihi makes great chips as well but I am not as experienced as the other 2 mentioned. From the 2 mods I have with Yihi chips I am happy but there higher end chips can be pretty pricey, soon I will get one but there is no denying there popularity.
For me all 3 chips mentioned are better than the RX200 chip and any other chip I have tried so far.
Sent from my SM-T900 using Tapatalk