I agree it was what put me off in my first foray into rtas, if they leaked on me the first time I tried a build I hated them with a passion and they ended up on the shelf vas a bad buy. This time round I do try again as I know usually that they do have their idiosyncrasies and perseverance is needed to get through that initial disappointment.
Hopefully it's all sorted for you now because they are lovely bits of kits. When I got my first BB I just clicked with it and realised that this was what I had needed from the start of my vaping experience....I just loved everything about them....there's a good reason why they are such iconic pieces which have been selling in high numbers since day one
I love my bb's

Let us know how you go