pps, re your shorting coil Joe, you're best off torching the wire with a blowtorch or lighter before you fit the coil, this coats the wire with a small amount of oxidisation which seems to help. I had a bit of a mare making a dual coil work with my tank (kept 'check atomiser'ing on me), but got it working sweet by torching each coil before fitting, now runs 0.6ohms nice.
pps, re your shorting coil Joe, you're best off torching the wire with a blowtorch or lighter before you fit the coil, this coats the wire with a small amount of oxidisation which seems to help. I had a bit of a mare making a dual coil work with my tank (kept 'check atomiser'ing on me), but got it working sweet by torching each coil before fitting, now runs 0.6ohms nice.