You can use an inch of wire with 4 wraps easily enough. I get ~1.2Ω from a 5/4 wrap in my AGA-T v1, and about 1Ω with a 5/4 in my chobra using 0.6mm Kanthal A1 ribbon, which is very close to it's 30ga counterpart in terms of resistance.
As with all things, taste is subjective - but I would think that aiming for a 1.5ohm coil will land OP back in the original situation sans the safety hazard. That is to say that it will taste great until it starts running at around 8.5W, after which it will start to taper off while the battery is still at 3.5V(under load).
Ideally, you want to discover a personal target resistance that will perform the way you want it to until it reaches about 3.1v under load - when it's time to charge the battery anyway. This of course takes some trial and error, and regular checking of voltage with the multimeter until you have a solid understanding of how the setup performs at each voltage.
Note that the standing and load voltages will usually be at a spread of 0.1-0.2v once it drains to about 50% usable charge, meaning that if you pull your battery out and test it on the meter, it will read about .2V higher than what it's actually operating at while in the device and firing the coil. be sure to keep that in mind if you meter your batteries to determine when to charge them. you should generally never let them drop below 3.1V (recharge when meter reads it at 3.3V)