Is one ratio better than another for longer coil life? I have used 80/20, 70/30 & 60/40 in my .04 Cletio tank. My understanding is that the higher VG has a higher viscosity? If this is correct, I would think that the 60/40 would flow faster or easier than 80/20 therefore keeping the wick wet adding life to the coil by not getting dry hits. So far in my limited experience (6 months) it appears the opposite is true.