Got my order today and having same issue as far as condensation - really "smokey", although I have no leaking. I was also wondering if this was normal. Also been getting a lot of burnt hits. Mine has the dedicated 2.4 stardust coil head - short wick.
Laura
I realize this thread's pretty long at this point, but my solution for the leaking (I think this is just trapped condensation somewhere in the post, probably directly above the atomizer head/in the drip-tip) is as follows:
1. ball up a napkin or paper towel's end, stuffing a nice bit of it in the area the Stardust would meet your battery or adapter.
2. Firmly grasp the Stardust/paper towel and shake it like you would an overfilled carto, making sure to hold at least one finger over the paper towel at the bottom.
3. Repeat a couple of times, moving to a new area of the paper towel/napkin if necessary
4. Re-test the Stardust. Any gurgling or condensation should be gone.
5. If this fails to resolve your issue, check the bottom of your drip tip for condensation build up around the seal at the very top of the Stardust. Usually, un-threading and letting this juice seep back down into the tank is sufficient to clear any trapped juice. If not, blow out your drip tip.
6. Alternatively to #5, roll up a small segment of paper towel that will fit inside the drip tip of the stardust, and poke it down inside the drip tip. If you have the Vivi head on there, make sure you don't poke it all the way into the wick, or it will just wick juice up into the towel. Spin the towel once or twice, remove, and vape away!
Hope that helps.
You may or may not need to do this every day or couple of days.
I'm sorry, but I'm not sure about the dry hits. Some juices I used in the old Stardusts would gunk them up. I currently use only gunk-free juices in my Stardusts, and inspecting the wick proved helpful- it was very clean after several days of nonstop vaping. Wick has ever so slightly darkened, but only on one side. I like the insulator part inside of the head.
If you still get leaks, make sure you're not filling above the 1.6ml line. Gravity seems like it wants to force juice through the wick above this level, but it won't happen with all heads you put on the Stardust. Some of them have even more dense wicks, but the interesting part is that one side is almost always longer than the other.
~ For cleaning ~
IPA or PGA soaks (sitting the soak container in some really hot water helps) will work for this purpose (if you use IPA, make sure all of it evaporates before vaping as this stuff converts to acetone in the blood IIRC). I haven't had to dry burn one of these yet, but I'll try to update you folks if it ever happens. I may simply use PGA to keep the wicks clean, because the coil shows no evidence of buildup (I opened a Stardust up and the coils were still shiny).
EDIT: At this point, I can reiterate my previous feelings- it's practically like dripping, without the hassle. Really digging these new Stardusts, and even the long-wick 1.8 Vivi head seems to be working great on them.