First tube? I'd suggest the Broadside, or even better, the Admiral clone. They go for around $30 on eBay and less from China. Many folks say that they are likely made in the same factory as the authentic using the same materials. I cannot validate that as I do not have an authentic, however, I do have two of the clones and they are phenomenal mechs. They simply hit harder, noticeably harder, than anything else I own (well aside from multiple battery mods, of course). I personally ran a voltage drop test on my brass version and I forgot to write down what it was but it was very good. I believe it was a bit less than what AmbitionZ Vaper (YouTube reviewer) got on his test.
I dunno man. For about $60 you can have a great mod and a Dead Rabbit. I run both of mine with Dead Rabbits and I absolutely love them. I love them so much that the second setup was purchased because I lost my first setup. Less than 24 hours after I lost it I found it, but it only took a couple of hours before the idea (the horror!) of losing it permanently became too much and I ordered the whole new setup. So I have a brass and a copper setup, both with the same coils in their attys and I can't tell a difference in how they hit, so I suggest ordering whichever you prefer. I prefer brass myself.
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