So, I had to know the difference between these two cartos.. and the results are.. not much.
Besides both working on 510, the main difference is the 306 is a tiny bit shorter and skinnier. The 306 do not run hotter (I was hoping they did). An advantage is the clear drip tips for the 306 from Kalamazoo are awesomely cute: http://kalamazoovaporshop.com/Kalam...ctDetails/tabid/72/ProductID/103/Default.aspx (but a 510 rubber drip tip will also fit).
306 on left (gold threads) 510 on right (silver threads)
Besides both working on 510, the main difference is the 306 is a tiny bit shorter and skinnier. The 306 do not run hotter (I was hoping they did). An advantage is the clear drip tips for the 306 from Kalamazoo are awesomely cute: http://kalamazoovaporshop.com/Kalam...ctDetails/tabid/72/ProductID/103/Default.aspx (but a 510 rubber drip tip will also fit).
306 on left (gold threads) 510 on right (silver threads)