@magicmyst Have you tried screws from one of the other kits or just the SXK?
@paladinx FWIW: Maybe make sure the JFC is actually closing and not just feeling close by hanging up on the bottom o-ring (had that once with one).. you could take the bottom deck o-ring off, put tank on, see if it closes further than with the o-ring..
Also make sure you have the 2 o-rings on the top-cap, 1 outside and the inside (which seals the chimney) one can come out when cleaning.
Sure the o-rings that come with them are not the best and may not last, But they are functional and get the job done..
I think someone posted earlier that Origin-vape (?) is going to get
authentic o-rings from SM.. Not sure who, but you can look back a few pages.. The AUTHENTIC KMV3 is also out there somewhere.
I replaced the bottom deck o-ring with the one which has a smaller cross-section (thinner) and slightly larger ID.. works for me.
Maybe the ones that are same thickness, but smaller ID, may work better (IDK) as you stretch them they thin out..
What works for me may not work for others, but so far I love em