I tried using the Saphires on my Darwin and always start low on the power and slowly raise it depending on how the carto/Saphire is performing. I had to send my Darwin back for repairs and it was updated with all the fixes the new ones have including a 510-510 extender screwed down tightly onto the brass adapter. Since this 510-510 extender only had 2 slots I removed it and purchased one with 4 slots so it would be a true Joyce 510 battery connection. I made sure the vent hole on the Saphire was lined up in one of the slots on the 510 extender. I took slow easy drags. I have 3 boxes of them and not 1 of them works well enough to use. I have tried different VG/PG ratios since I mix my own juice. I am currently using 25% VG/75% PG so the juice should be plenty thin to wick. I hope the newest Saphires that are coming in will be fixed but I won't purchase any until I get some working replacements for the ones I have. I can't afford to throw away money. Honestly the ones that were sold when they were 1st released are better than these.
For those that are loving the Saphires what % VG/PG are you using? What device are you using? If variable what V or W do you have your device set at? Do you chain vape or just take a few draws and put it down? Perhaps with the answers to these questions people that are having issues with the Saphires can duplicate what those people that are loving the Saphires are doing to change their bad experience into a better one.
For those that are loving the Saphires what % VG/PG are you using? What device are you using? If variable what V or W do you have your device set at? Do you chain vape or just take a few draws and put it down? Perhaps with the answers to these questions people that are having issues with the Saphires can duplicate what those people that are loving the Saphires are doing to change their bad experience into a better one.


, yet I still manage a clean, dry burn and wick change in under 5 minutes.