I'll have to try them the next time I need attys. I thought that was a pretty good price because I use to order them from Cignot for my Ego and they are $25 for 3 of them and $5 shipping if order was not over $59. These ended up being less expensive for me.
Question - the ones from VK's, do they have primer? The ones from cignot do but the ones from innovapor don't and I prefer ones without primer.
As I get really puked out from just a hint of primer, I assume all attys/cartos have some primer and/or soldering flux residue. So before using any atty/carto I blow them out and give them a good soak in PGA and dry burn or a boiling (if there is obvious primer) and then dry burn. Even the most pristine atty sometimes will have some burn off vapor, when dry burning after cleaning, prior to first use.
BTW..... DO NOT DRY BURN CARTOS OF THE KIND THAT HAVE ANY STUFFING!!!!!
Alice