Anyone use an 801 fusion on their Provari?

[BuddyGoodness]

I have been experimenting with the fusion cartos because I heard good things about them. Normally I use 510 Boge 3.0s in my tank. I bought a pack of 5 to play with and I do think they have a little better flavor. Plus the lip on the 801 stops the tank from sliding too far. My question is that I keep getting E1 errors with them. I have tried it with two different types of 801 to 510 adaptors, most of the time they work fine but sometimes they get stuck giving me an E1 error message and I have to switch back to the 510s for a while. Anyone else experienced this problem? Think it is just the adaptors?