Wierd. I used a standard Boge Cartomizer in my UFS for a week while waiting on new atomizers to show up. I didn't trim anything and used the Imeo mouthpiece just fine. Of course my UFS was not in short mode.
Maybe mine are marked as standard but are actually xl or something. I've been buying standard Boge 2.0 ohm cartos from crystal clear vaping for months and they are a bit to long