Okay, thanks to all your knowledgable posts, I am finally ready to purchase. I think. Seems (Mr. Darcy I think concurs) that Puresmoker.com is a smart way to buy and more reasonalble for the product offered. I am still confused on what spare parts I need. .

And I want to combine all in one order. I'm going to get a DSE901 mini starter set, 1 extra atomizer, and I'd also like to order the classic penstyle, because I simply dont know which I will prefer. MIght as well order both at the same time. I asked them on chat/contact area if the battery and other parts could be used for both e-cigs. But they were not around to answer.
so HELP please! Does the penstyle need its own parts? Meaning, must I both complete sets to experience both? And what do you recommend I buy as needed extras? Cartridges? Atomizers? (not even sure the difference) Batteries?
Thanks in advance for your advise oh wise ones!