somehow i managed to bend a bit the SS on the prime which is amazing,
i dropped the kfl twice from big heights and a part from some scuffs on the metal parts everything was fine,
i remember it slipping out of my hands and flying all over the room and nothing.(i almost had time for a burger while it was airborne).
and then there is the prime;from a sitting position,while building a coil, it slipped out of my hands,gently landed on my rubber crocs and rolled to the ground,and now i have a dented hard to screw on airflow ring.
at first when trying to screw it back together i heard metal scratching and it was impossible to screw it all the way,so i thought that maybe my coil was too high and it was touching the top of the inner chamber, or that maybe i missed matched the threading, but after some time i managed to gather there was something wrong with air flow ring and indeed i could see it got slightly bent where there is that triangle thing that helps grabbing/screwing it.
so apparently at that point the metal is thinner and that's where it bent.
i managed to slightly widen it with some needle nose pliers which makes it usable but still,a lot of metal scratching which leaves me with two scratched parts i might replace.
good thing svoemesto are selling those parts separately
Kayfun Prime Ersatzteile - Kayfun Prime - Ersatzteile still, I'm not to much into paying 40 euros on top of the initial 130 one.
at least it might have alleviated a bit the air leak this tank i suffering from imo.