I nearly forgot to say, the two Lemo`s which were giving me grief ! Well i got them sorted this morning. I knew it was only a wicking problem, as i wasn`t getting any air bubbles after a vape.
So i stripped them both down, and checked everything was ok seals etc, The coils are bang on, so didn`t need to touch them. Rewicked with rayon, up and down the chimbley way, filled the first one up, took a couple of vapes, and no air bubbles

Another couple of draws, and i could hear the wick drying out.
So i took the top cap off and syringed the juice out, took the top off the chimbley, and had a good old poke around the channels, put it back together and it is great now, with a nice big air bubble after three or four toots. Second one i think i got lucky, as i was getting bubbles straight away with it
I know i never had that sort of mither with the kayfuns wicks though, i used to throw them tanks together for fun, no messing afterwards !