I havent been the biggest fan of these coils. I have had flooding issues and the flavor has never been anything special. I had a 1.5 ohm single coil wide slot sitting around. i read somewhere how to take them apart so I pulled it apart and on a whim decided to pull the silica out and re wick it with organic japanese cotton. VAST improvement. Still a bit of flooding if you dont hit it right which I think could be fixed by whicking it tighter. The flavor is like night and day. Much better vapor production Just thought Id share my findings. Its not hard to do but Ill make a vid if anyone needs it.