You'll need a new disposable hypodermic needle size of 25G x 5/8-0.5x16mm(means: 25 gauge and 5/8-0.5x16mm length)..should be brown/orange plastic connector....cut the plastic connector to 1/3rd with the needle intact....stick into a cartridge wool (full/half filled with liquid..mine works with Njoy..might work with other brands) in the centre and push all the way in till the needle stop..don't puncture the cartridge..you'll notice the wool will be pushed back and liquid will fill up but don't worry if it also fill the cut end of the needle..you can top up later with e-liquids..now reinsert the cartridge with the modified needle into your atomiser..don't worry, it won't be burnt...start smoking...you'll feel a sudden change in the flow of vapor..cooler to the tip of the tongue and far more dense....please try...you'll like it...250 patients of mine love it..far superior but it can consume a bit more liquid..it is like dry smoking but with the cartridge inserted and if the 'fuel' gets low..jerk it like a pen running out of ink..you'll get a instant refill automatically....I find it far better in burning up th e-liquid and producing better vapor....
Second tip...keep your container cap(mine is the Njoy type) and cap it over your mouthpiece tip when you are not using the device ...use it like a pen cap (same principle to prevent your pen/marker from drying up)and you'll be conserving moisture within the atomiser(save losses of liquids through the mouthpiece)..you'll be surprised it actually help in producing your first billow of vapor....
More tips to come..as fast as I can discover it....Let me know if you have any problems...cheers....From Doc. Jim.Loi., Malaysia.