I got tired of the small cartridge

[jacko]

I wanted to get a larger cartridge so I could go longer without refilling, so I made this mouthpiece and a cartridge. I used the spring mod, and used some alcohol prep pads that I let dry out since I haven't gotten any PTB. This is working great, gives me more vapor and lasts a l o n g time. The new one is pictured on the right, compared to what I replaced.

[codfish124]

more detail please what did you use how did you use it