I'm using 8.8 Watts which is about the max you should go if I'm right about the
vaping charts. I usually run about 6 Watts but the V3 wouldn't allow me to fire it for some unknown reason. I've steadily increased it and found that for my current juice which is standard Hangsen it's working great. With my other 100%VG juice it's a good bit lower...I always usually go quite low as it make my Aerotank last longer, but I'm preferring a bit more heat now and 8.8 is really nice and warm with plenty of flavour and vapour. It's hard enough deciding what coil and Wattage...but then the blinking juice prefers all different heats too! This hobby has certainly becoming a full time time waster

Can't wait to hear how you get on with your Kayfun! Have you long to wait for it coming?