Yes, I remember making the cut being a tense affair. But I just cut down a little at a time and then put it back in and rode the scoot to see if I had cut far enough. Took three times, but at least I felt confident about not cutting too deep.
Go for it and take it slow. It's easy enough to slip in and out of the scoot that it isn't a big deal to go for an incremental approach like I took.
Good luck.