Is the draw tight on ALL your batteries? If so, it may be a blockage in the air holes at the base of the tank, or maybe the holes got drilled a tad low. Had that on one Evod, and an ego to 510 adapter solved it.
Yes!
First thing I did was put that tank on my battery
Don't have a good reason for that.. just wanted to see..
I drained the juice, wiped everything clean
Did find the coil to be loose and spilled a bit because of this..
If we we're not running the same juice, I'd think it was the juice..
I put the coil back on (without juice), put the batt back on (no power) and drew on it
Drew very smooth and felt un-blocked..
Add the juice and it's a hard draw..
Next move is to change the coil..
Just didn't think the coil could be bad from the box...
And if it is... Then how the heck do you tell??
(Or did I just experience the answer to the question..)