Hey all has anyone tried the iclear 30b yet? if so how did it perform? 
I just got my iClear 30S an hour or so ago. 100 times better than the 30b. Great vapor, full flavor. Very happy. Too early to say if it leaks, but first impression is very, very good. 9W on an eVic.
Agree with ian91. 30B > 30S > 30. There's nothing wrong with the 30 / 30S just prefer the 30B. I've also figured out that you can adjust the "tight draw" to an airy one very simply by just removing the top flavor wick or better yet just replace all the wicks with cotton. I've been running all three of mine with cotton snuggly through the two coils. Performs a little better that way for me.
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I went ahead and ordered the Cool Fire 1 which comes with the iclear 30b. It will be my first time using tanks, was wondering what are the possible avenues for leaking/flooding to occur? I'm a little confused with all the readings. Is it via the coil in the tank or simply from the tank's bottom screw?
Or any prevention methods ie. tapes, washer or something?
so far i have done about 4 refills on my new 30s with 1 wash/soak in between(changing juice flavour). Vaped it on all 3 of my mods (svd, mvp2 and nemesis clone). No leak so far which is so much better than the last innokin i tried (iclear 16-leaks very often). For this 30s i didn't add any washer or did any mod to the tank. I guess you just have to make sure you don't overfill it. As for low juice's vacuum issue i haven't had any of it yet as the last tankful i vaped till almost very last drop left in tank.
From my experience with iclear 16, kanger evod and vivi nova(which i experienced some form of leak), often the cause of leakage is where the atty joins the mouth piece/drip tip, whereby juice leaks into vapor channel and got sucked into your drip tip. Alignment of these joints is crucially important i guess. For my vivi nova, the case was that the center post went outta alignment.
my 2c worth..
I have the cool fire 1, and it works great with the 30s. The 30b wasn't bad, but I replaced the coil, now it floods out a lot. I picked up a x.1 the other day and I love it, but it has a very airy draw. I personally like that but if you don't it probably isn't for you. The coils are interchangeable with the 30b tho. View attachment 305401 looks pretty nice on the mod too.