I went from Vamo+1.2 ohm min resistances on Aga-S,RSST,Russian 91% onto dripping and since starting to use drippers,my tank attys are untouched.I'm now on a W3 with a quad coiled 0.2 ohm setup & I'm loving it.I do panic a little when I chuck in a freshly charged battery & the juice spits so hard I have to re-wick as the cotton is spread all over the top cap,but 0.2 ohms doesn't take long to discharge the battery so I get hours of tasty clouds.