I have just had observations through my last two weeks of doing a lot of reading. When I first started everyone recommended the Boges. Now it seems everyone is recommending the Smoketechs and mentioning poor quality control with the Boges recently.
I have tried cartos. I tried the Smoketech XL dual
coils on ego 1000mah and I have also tried Boge 3.0ohms on the Provari. I can honestly say I am not a carto guy. I think they loose too much flavor and I have had a lot of luck with 510s for the most part. Had a few bad ones since starting from various vendors.
If you like the cartos, maybe try another brand or at least for now if you have some atomizers give them a shot and see how they do as far as the ohms.
If you are getting an e1 error and the ohms on the cartos are at least above 1.5-1.6 you should still be able to use them as long as you turn the voltage down.
I can use my 1.8ohm 510 attys up to 4.4 volts but if I try 4.5 it errors. The vapor is too warm at that voltage anyway for me and I normally run them at 4.0. Now I have a stock pile of 3.0ohm 510's and I range from 5.0 to 5.7 depending on the
juice I am using.