I tried my friends rda out and I'm just now getting my own. He said to get a stillare. I want to, but I heard because of the AFC being open on both side its only good for dual coils. I also heard its good to start building single coils at first. I'm looking at either getting a mephisto or trident rda. Which one has a bigger deck/easier to build on? Btw I'm looking at getting the clones off FT. Not sure if that's a factor, but I'm not trying to drop 100 bucks on an RDA.