Getting the first one working (and remembering how you did it) is key. I started with 7 wraps, and tried it. It worked, at least. Next one was 6 wraps. Kept experimenting until I found what *I* liked (which is somewhere between 2.1 and 2.5 ohms). 32 gauge is what most folk start with, and many try other gauges too, until they find what *they* like, which might be 10 wraps of 28 gauge, or 3 wraps of 34 gauge.