So i just got the k101 and the nautilus tank. Brand new out of the box i screw the nautilus tank on there and it doesn't work. Back the tank off a few threads and it works perfect, but it's wobbly because there's only a few threads hanging on. Help!
Try this "The pin on the K101 is "floating", so... telescope the mod a bit, screw on the Nautilus until flush (pushing the 510 pin downward a bit in the process), then collapse the mod, snug to the battery."
So to take what you're saying a step further.... there's a piece that goes in between the tank and the mod. So I take the tank, screw on the coupler(piece I'm talking about above) then screw on the telescoping piece, put the battery in there and screw on the bottom. Nothing.