Please Help! Newbie - "Outside Path" question

Guys

Thanks so much for your responses - yes, I had this thought. Here is the issue I had with that. It does not seem like a very precise cut. There are either four small posts on each corner as seen in the pic below OR there is a small very thin wall that stays on the outer edge of the final piece. Very thin.

I am just worried that after I cut, the piece won’t be precise. Is this normal? will those small posts just break off?

Very sorry for how NEWBIE this is. I work a lot with 3D printers and I had the same issues when trying to learn that software. Appreciate all the help