You can organize a BJCP sanctioned competition now that you are a member and either an apprentice judge since you took the exam or recognized judge if you passed the exam. If you organize a completion, it will help move you up in the BJCP ranks to become a certified judge...you will also need judging points to move up so you could kill two birds with one stone in that respect.
I'll take a crack on the off flavor for the pils and say it was due to water. If you brew that style with moderate to high mineral content in your water, it will give a mildly astringent and heavily harsh feel due to the hops clashing with the minerals in the water. That may have been what you were tasting in the pils that you couldn't put your finger on.