I recommend 305

I've never tried this type of clearomiseur, it is very good & the lower wick system will keep well soaked with liquid, it also prevents product leakage into the mouth (very unpleasant) when the inhalation, which happens frequently with conventional EC4! Good distribution of the liquid flavors.
On top of that delivery is very fast, I ordered a Saturday and it was certainly posted the same day. The package does not include bubble wrap but everything was ensconced inside so arrived in perfect condition!
The seller adds a note with the delivery + telephone number, it is very nice!
In short everything is perfect !!!