My wife has been a KR8 user from the beginning - she liked V4L Wow Cowboy pre-filled cartos, and had been using them on some of the KR8 fat batts for quite some time. A while back, I bought a second Mini and filled it up with her Cowboy juice, with a dual-coil carto. She's been using that off and on for the past couple months, too. Last night, she said she's done with the other rig - it just doesn't perform like the REO. 
