Just disclose it and move on. Regionals won't care even the "better" ones. Just be straight aboht it, what happened,and what you learned and how you made sure not to have it happens it again. If you don't tell them. They WILL learn about it, especially if it came, or was reported to a FSDO. Any serious background check, which they will do will bring it up. Just be honest and most likely they won't care. Yes regionals are still excusing people a week into ground school for stuff like this when people don't bring it up in the interview.