lol to be honest I simply didnt try the lower number before or after the error at all (It did give a couple of hits before starting to give error, also it did work at 3.0V) Yeah, you can say I was focused more on the number,

But in my defense I would say, on the Vamo I started from 8W and gradually climbed over to 15W, and the high watts is what I liked for this build
Edit : Sobersnyper explained it in the other
thread, At 5.5 V with a 1.3 ohm coil, the amperage required is 4.23 amps and the resulting wattage is over 23 watts. I'm not sure what you were expecting considering the Provari V2.5 has 3.5 amp limit as well as a 15 watt limit. It is giving you the E1 and E2 codes because you are exceeding these limits.
So all is fine, let me give Provari another chance,