The're two issues really:
1) The movement is a bit too much upwards and not forwards. My drive is ok but the loop has issues when counter looping due to this. This is the easiest to fix and I'm getting better at this.
2) The biggest issue is what I do with the right foot. I follow through the loop quite well but it seems impossible to reset the right foot so I quite often end up with the right foot in front of the left foot after a few loops.
Basically - everything to do with the arm I seem to have no issues with learning but my feet just won't do what I want them to do. I'm crap at dancing and aerobics as well... zero coordination
Edit: Read your question incorrectly. Too much at work
What we're trying to fix is how I place my feet. Also focusing on moving in/out from the table. I typically just move out/out/out. Also changing where I place my right foot.
Edit2: The coach films our sessions so I'll try to get a hold of tonights footage. Maybe you'll understand more of what she tries to achieve than me