510 Carto Issues

[sj74]

Hello World I am having some issues with a stack of boge 2.0 510 cartos that I got. I have dumped about 3ml each into a few of these, rolled them around, let them sit, tried to fire them on the following devices

TOX VV Cannon at 3.7, 4.2, 5.0 ( all three burnt taste )
Ego 650 mah (burnt Taste)
Ego 1000 mah (Burnt Taste)
Sneaky Pete running 16340 battery (Burnt Taste)

As you can see I am getting some burnt taste over here

Bad bunch of cartos? I have tried "condom" filling, aim and squirt, and a syringe to really get down into the wick. All results the same.

Let me know what you all think

 

[ikbtops]

Is this a standard boge carto? 3ml is at least twice what these hold.
You're probably over filling and I wouldn't use 2.0 above 3.7v.

 

[classwife]

Moved to Cartomizer Issues