Aaahhhh
No way!!
The Protank4 dumped almost an entire juice load on my VTC Mini overnight
Filled it last night after not using it for a while and this morning theres juice all over!
Damn
Am still using one of the stock coils in there (the lower power one)
I am almost sure i filled it correctly. Unscrewed the top part a bit, opened the juice port, fill, close juice port, close top part and even had a few vapes and it seemed fine.
Now need to go investigate and clean up. Gosh I hate it when this type of thing happens !!!!
I had the same issues so I feel your pain.
I have had that issue with all the Kanger coils. My issue was that the liquid leaked through the coil itself and not through the bottom screw section or where the chimney went into the coil.
Currently have a gCeramic coil from Atom Vapes in there that 'touch wood' have not had any leaks.
The RBA also hasn't caused any leaks for me so i will be using the tank exclusively for that purpose.
Hope you have better luck with your investigation.