Go for the Hana clone and the kayfun. I bought a squape clone and it was shorting out because of the coating they put on it. Kind of a teflon. I personally own a hana clone and it is awesome. And several kayfun clones. They are what several other RTAs' are modeled after, so you know they're good. Just a word of warning tho... fasttech can be kinda nuts with shipping sometimes. So when you place the order, be prepared to wait quite awhile.