Am on 18mg (using GS and also Ego-T) - am finding I need a substantial hit - ie long multiple vapes at once to get a maximum throat hit to feel the satisfaction comparable to being formerly on rollup tobacco. But feeling dizzy-ish, slightly sickly. So am guessing I might want to vape more - harder hits - with 12mg rather than vape less with 18mg. Would vaping more with 12mg actually satisfy the nicotine cravings - or am I best just going for gold on the 18mg for the first few weeks/months to get over the shock of no more tobacco after 26 years!!