I run 28g and aim for 1ohm for just about everything on my reos. My mini is running wakonda and really pulls the flavor. Not sure if anyone told you this, but the closer the coil is to the rim, the more flavor. General rule of thumb that I do, after about 6mls of juice, I pull the old wick out, dry burn the coil to get gunk off of it, and put a new wick in. That keeps it nice and fresh.