I don't know if this has been posted before, so delete if needed.
I was trying to refill my M401 cartridges from Smoore. Smoking Liquid sometimes dripped out the bottom hole. I followed the advice of dripping down one side to no avail. Being the curious type, I watched the little vid about restuffing the carts and took one apart. Low and behold, I was looking at something totally unlike the pics I found in this forum. The inner cartridge is rather slender, and has no flat sides. It also has no little 'stem' on the bottom.
Instead, it has three 'wings' that hold it in the exact middle of the mouthpiece, with a matching 'wing' on the inside of the mouthpiece to space it off the bottom.
With this design you have to use the paperclip trick or syringe, or just take out the inner cart to refill. Gives it a great draw though, with no way for liquid to seep out of the mouthpiece.
I was trying to refill my M401 cartridges from Smoore. Smoking Liquid sometimes dripped out the bottom hole. I followed the advice of dripping down one side to no avail. Being the curious type, I watched the little vid about restuffing the carts and took one apart. Low and behold, I was looking at something totally unlike the pics I found in this forum. The inner cartridge is rather slender, and has no flat sides. It also has no little 'stem' on the bottom.
Instead, it has three 'wings' that hold it in the exact middle of the mouthpiece, with a matching 'wing' on the inside of the mouthpiece to space it off the bottom.
With this design you have to use the paperclip trick or syringe, or just take out the inner cart to refill. Gives it a great draw though, with no way for liquid to seep out of the mouthpiece.