Hey fellow FFX explorer! When it comes to sphere grid progression, make sure to focus on each character’s strengths. Don’t be afraid to mix and match different paths to create unique character builds. Side quests are a must for rare items and extra challenges. Don’t miss out on the Monster Arena and the Celestial Weapons quests. As for character builds, consider specializing each character in a specific role like tank, healer, or damage dealer to maximize their potential in battles. Happy exploring!