Heres what i do now,when my RSST or AGA is half empty i find the vape diminsihes,i just tilt the tank horizonally too keep the wick out of the juice and dry burn with a few small pulses,you may not see much gunk on the coils but its there and it does make a big diff.It makes the coils operate hotter and the flavour come tru again,RBA`s are the only way too go.
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