I've noticed that I get a lot more E1 errors also and that the threads have a lot more play in them as well.
Almost sent my newest mini back because of it.
I use my Russian almost exclusively on my new mini because of it, but I still keep my clearomizers around for when I want a quick flavor change. I simply don't have a stack of RBA's that I can do this with, and taking my dripper isn't always an option.
I contacted provape about it and they offered to adjust it for me and to just send the tanks I use in with it so they could adjust it. They asked for the tanks I use to make sure they don't adjust it to one then it won't work with others but I assured them the mini I have sits flush and had no issues with any of my tanks. I just don't see why they couldn't have left it be and just added the notches. I think they tried to perfect it to much.
I also notice for some reason if I swap the same tank back and forth between my older provari mini and the new one I get a fuller more consistent vape on the older one.
The e1 errors are so bad I get one every time I change my tank or refill it. Even if my tank becomes loose and I re snug it I get an e1. I basically have to fire it loose then snug down while firing and I'm OK after that.
Think I'm gonna send it in to get checked though cause it bugs the hell outta me. I may even request and pay if i have to for them put an un slotted top on it if possible.
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