Hi again guys, probably sick of me and my problems by now :/... does anyone use the tfv 4 mini? if so which coils are best for avoiding spitback, and also what VG/PG juice ratio would you recommend.. im using the triple coil at the mo, and well.. compared to the other issues ive had with many tanks.. this is the best yet.. but im still getting spitback which is really really really bugging the life out of me!!! im using a 60/40 vg pg ratio juice. feedback much appreciated cheers