I think 5 wraps is too few... I usually do about 8-10 with 28g wire... What is the ohms on that 5 wrap 30g?
It all depends on what kind of mod you are going to be using. If you're planning on using a mechanical, then .8 to 1.1 ohms of resistance is awesome. (A 5 wrap of 28 gauge will get you there usually.) If you are using a variable wattage mod that goes up to 20 watts (and the appropriate battery of course), then higher resistances are fantastic.