I make DIY juice, and I'm looking for something that works a little better for testing than my mini protank - I don't want to have to use 1-2ml to test, so I'm thinking about a dripper. Since it would only be used for trying them out, I don't want to drop a ton of money on it. I'd also like it to be relatively easy to build on... I'm not looking to get into crazy advanced coils on this one. Does anyone have an inexpensive rda (clones are fine) that they like and can recommend?