I hope someone can help me. I have a friend with a Bridge pro 720. Since she first got it a few months ago it has never given her a good clean cut. I have tried everything I know to fix it and nothing works.

I have a uscutter and a gx-24. Never had this problem with the gx-24 but did a little with my uscutter but finally fixed it. So any suggestions would be greatly appreciated.
Thanks this forum is awesome.
Lisa