Welcome , but I will second the K100 . And several of the Sigelei's are pretty good as well . Some of them you need to tweak a bit to get the best performance , but pretty easy to do . I personally have the K100 , as well as a Sigelei # 5 , #8 , #13 , #19 , and a # 20 . The only one I don't think much of is the # 13 . But the K100 hits the best out of all of them . Definitely the cheap way to try out the mechanical's . And the AGA-T's , and the Smok RSST are great lower end RBA's to start with .