I've read the looong thread on this tank and there is not much info to be found on here since. It was on my list for a while till recently when i added it to an order and glad i did. Yes the building is different from the conventional newer RTA's but just as easy if not easier with a pretty good margin for error. The drip tip bore is a little large but with a smaller bore tip, 2.5mm core build, its overtaken the hastur for me with ease. I've got another in the basket and would buy an original if reasonably priced just to show my support.